A jury сonvicted Yasilios Anagnostou of using an explosive device to destroy his restaurant, 18 U.S.C. § 844(i), and of mail fraud for filing an insurance claim to collect on the resulting property loss. 18 U.S.C. § 1341. On appeal, Anagnostou contends his due process rights were violated by a nearly five-year delay between the explosion and his indictment, and also challenges the sufficiency of the evidence and the jury instructions. We affirm.
I.
In 1977, Anagnostou opened the Honey Bee Snack Shop (the restaurant) in Mount Prospect, Illinois, which he owned and operated for the next eight years. On the afternoon of November 25, 1985, Peter Anthony, an old friend and regular patron, entered the restaurant to have a cup of coffee. Anagnostou told Anthony that he thought there might be a problem with his kitchen stove owing to a gas odor emanating from the kitchen earlier that day. Anthony, who had experience as a general contractor and carpenter, thought that the “flex” рipe on the back of the stove looked old, and told Anagnostou they should replace it. After picking one up at a hardware store across the street, Anthony, using some wrenches from his car, replaced the pipe and completed his work by 5:00 p.m. The staff left by 10:00 p.m. and An-agnostou and his family closed the restaurant by 10:30 p.m.; after stopping off to see his accountant, Anagnostou went home to bed.
Just two hours later, at approximately 12:30 a.m., an enormous explosion destroyed the restaurant. Firefighters extinguished the blaze, bulldozing the front of the building in the process, and local fire investigators and agents from the federal Bureau of Alcohol, Tobacco, and Firearms (ATF) immediately began an investigation into its cause. They suspected a natural gas explosion from the start: a witness observed a fireball, the roof had been blown off, brick walls were knocked down, and debris scattered more than 100 feet. Investigators traced the main gas line into the building and to the kitchen, where it supplied all of the appliances in the restaurant through flex pipes connected to the main line. The pipe entered the restaurant through the wall behind the stove. Investigators discovered the stove resting roughly one foot away from the wall with the gas shut-off valve removed from the protruding main gas line and laying on the floor behind the stove. Threads on the pipe *941 were all intact and the valve assembly had a fresh tool mark on it. Fire investigators removed the pipes and valve assembly and forwarded them to a laboratory in Washington, D.C., for further examination.
ATF agents interviewed Anthony on December 10,1985, and again on February 11, 1986, to determine what he did behind the stove. Anthony told them that he replaced only the stove flex pipe and did not disconnect any other valve or pipe; after replacing the flex pipe, he tightened it with a wrench and then lit a match to make sure the connections werе properly sealed. He further told investigators that he did not detect the smell of gas after completing his repairs. Investigators also learned from others that by 5:00 p.m. the stove had been pushed back against the wall, that the restaurant’s cook, James Alikakos, then used the stove without any problems, and that neither he nor anyone else noticed the smell of gas in the kitchen.
As the investigation unfolded, evidence suggested that Anagnostou might have deliberately set-off the explosion. Just weeks before, Anagnostou received word from his insurance agent that the company insuring his restaurant had sent out a non-renewal notice, terminating coverage on December 1, 1985. Other evidence indicated that Anagnostou’s business and personal finances were in decline and that he exhibited unusual behavior on the day of the explosion.
A federal grand jury returned a two-count indictment against Anagnostou- on November 14, 1990. As will soon become relevant, Anthony died just one month later, on December 16. After a six-day' trial in July 1991, a jury convicted Anagnostou on both counts. The district court sentenced Anagnostou to 36-months imprisonment and three years probation, and stayed the sentence pending the outcome of this appeal.
II.
Anagnostou’s principal contention is that a delay of nearly five years between the restaurant explosion on November 26, 1985, and the return of the indictment on November 14, 1990, substantially prejudiced his defense bеcause of Anthony’s death in December 1990 and his resulting unavailability at trial. Anagnostou asserts that Anthony would have explained exactly what he did behind the stove and possibly admitted to disconnecting the main shut-off valve, exonerating Anagnostou of the crime or at least creating a reasonable doubt in the minds of the jurors. He adds that Anthony would have created additional doubt by admitting on the stand that he had limited plumbing experience, and suffered from ailing health and poor eyesight. Anаgnostou first made this due process argument in a pre-trial motion to dismiss, which the district court denied.
Although statutes of limitation are the primary safeguard against the potential
prejudice
— i.e., faded memories, lost evidence, unavailable witnesses — that attends stale criminal charges, the due process clause plays a limited role in protecting against oppressive prosecutorial delay.
United States v. Lovasco,
Here, Anagnostou fails to show that Anthony’s unavailability prejudiced his defense.
United States v. Adams,
Turning to the second prong of the pre-indictment delay analysis, Anagnostou concedes that the government did not intentionally delay his indictment to gain an
*943
unfair tactical advantage. Appellant’s Br. at 14. Only
bad faith
delay is proscribed by the due process clause, and therefore Anagnostou’s concession on this point is fatal to his argument.
Ashford,
Our holding should not, however, be read to condone a five-year pre-indictment delay; indeed, as Chief Judge Bauer оbserved in
Ashford,
III.
Anagnostou next asserts that the evidence is insufficient to support his conviction. In challenging the sufficiency of the evidence, Anagnostou bears a heavy burden.
United States v. Davis,
Anagnostou contends that the government based its case entirely on circumstantial evidence, none of which definitively links him to the disconnected gas valve. He argues the jury ignored a host of exculpatory evidence that casts a reasonable doubt on his comрlicity in the explosion. First, his expert witness opined that the explosion might have been, caused by a natural underground pipe leak, and that it was possible for the gas pipes to have pulled apart during the explosion without stripping the pipe threads. Second, Anag-nostou takes issue with the inferences the government asked the jury to draw from his financial situation and conduct leading up to the explosion. He points out, for example, that several vendors testified they made deliveries to his restaurant in the weeks prior to the explosion, suggesting that his finances were not so precarious and that he had no plans to put an abrupt *944 end to business. He claimed, too, that he was never under the impression from his insurance agent that obtaining new coverage would be a problem. Finally, Anag-nostou points to other evidence that creates doubts about his guilt. He argues, for example, that Anthony’s medical records revealed that Anthony had a bone disorder, a nerve disease, and poor eyesight, any of which could have caused him to accidentally open or damage the main gas line.
Anagnostou’s argument boils down to an invitation to second-guess the jury, something we are not entitled to do unless the record is barren of any evidence supporting the government’s case.
United States v. Jackson,
Regarding motive, the jury heard extensive evidence of Anagnostou’s mounting financial difficulties. His landlord testified that he was often delinquent in paying his rent, and that in 1980 he sued Anagnostou for four months back rent. His accountant testified to the restaurant’s debts and outstanding state and federal tax obligations; he also testified that Anagnostou had borrowed on his credit cards to keep the restaurant afloat. His insurance agent testified that he notified Anagnostou that his insurance was not being renewed and would expire on December 1, 1985, and called him several times in November to say that he was unable to find a replacement policy because of a very tight insurance market.
The jury also heard evidence of Anagnos-tou’s uncharacteristic behavior on the day of the explosion. One of the restaurant’s waitresses testified that when the exterminator arrived at the restaurant on November 25, Anagnostou sent him away, and that he sent her home early that evening, telling her not to refill the condiment containers on the tables, one of her regular closing duties. She further testified that as she left the restaurant on November 25, she saw Anagnostou and his family removing boxes of food and restaurant supplies from the rear of the restaurant. Another waitress testified that Anagostou rushed her to leave the restaurant on November 25. Anagnostou’s abnormal behavior supports an inference that he was preparing to execute the alleged scheme to destroy the restaurant.
The jury also heard from several expert witnesses, all оf whom made conclusions linking Anagnostou to the explosion. An arson specialist testified that the disconnected gas pipes were not pulled apart by the force of the explosion: the pipe threads were not stripped, grease on the pipe threads indicated they had been unscrewed, and fresh marks on the pipes indicated they had been opened with a wrench. He further testified that the physical evidence eliminated other possible sоurces for the leak, such as the restaurant furnace, leaking pipes, or open burners on the stove. He added that the explosion could not have been caused by a natural underground leak, as Anagnostou’s expert alleged, because the restaurant was built on a concrete slab, concluding that the explosion could only have been caused by a large accumulation of gas from the main gas line which was eventually ignited by an electrical sрark or pilot light on one of the kitchen appliances. An explosion analysis found that the volume of air in the restaurant was about 15,000 cubic feet and that, based on the magnitude of the explosion, at least 900 cubic feet of gas had accumulated in the building when it ignited. Given the pipe configuration and the average flow of natural gas in suburban Chicago, he estimated the gas had been leaking from the main line for at least one hour. A specialist in firearms and tool mаrk identifications testified that he conducted a microscopic analysis of Anthony’s wrenches and con- *945 eluded that they did not make the fresh tool mark that had been found on the main gas pipe. He also opined that the direction of the tool marks indicated that the main gas pipe had been intentionally loosened with a wrench.
Finally, the government presented evidence that Anagnostou was the only person with the opportunity to commit the crime. Someоne intentionally removed the shut-off valve from the main gas line, and Anagnos-tou was the logical suspect; he was the last one to leave the restaurant and there were no other occupants or tenants in the building. It couldn’t have been Anthony because, after his repair job, the stove worked fine and no one detected the smell of gas. The experts agreed that the size of the leak was such that anyone passing the stove would have heard or smelled the escaping gas had the valve been left open during the day. The jury also saw a transcript of Anagnostou’s testimony in a civil deposition in which he stated that he did not believe Anthony had anything to do with the explosion and that Anthony changed only the flex pipe and did not work on the main gas line. Lastly, the evidence showed that Anagnostou stood to collect as much as $250,000 under the restaurant’s insurance policy.
Anagnostou maintains that the evidence presented was insufficient to preclude the
possibility
that Anthony or natural causes caused the explosion: He also goes down the list of witnesses raising a series of questions about their credibility; he calls one of the expert witnesses a “hired gun” of the insurance company, Appellant’s Br. at 28, he asserts that “the jury totally ignored [his expert’s] testimony,”
id.
at 49, that his former insurance agent was obviously “lying to the jury,”
id.
at 42, that the prosecution “totally failed to prove that the business was in trouble,”
id.
at 36, and that no one can “say beyond a reasonable doubt that Peter Anthony did not loosen the main pipe.”
Id.
at 24. Of course, he made these same arguments to the jury, all of which presented issues of witness credibility that it was free to reject.
United States v. Beverly,
IV.
Finally, Anagnostou makes two challenges to the jury instructions. First, he asserts that the trial judge committed reversible error in instructing the jury on a jurisdictional element of 18 U.S.C. § 844(i), which requires that the building destroyed be one “affecting interstate commerce.” Jury Instruction No. 18 read:
If you find that the government has proved beyond a reasonable doubt that the Honey Bee Restaurant bought and sold products produced outside of the State of Illinois then I instruct you as a matter of law that the building containing the Honey Bee Restaurant and the personal property therein were used in activities affecting interstate commerce.
Appellant’s Br. at 5 (appendix). Anagnos-tou maintains that this instruction violated his right to due process by removing the government’s burden to prove all elements of the crime. We disagree.
Besides the fact that this instruction correctly states the law,
see, e.g., United States v. Sweet,
Second, Anagnostou asserts that the trial judge committed reversible error by instructing the jury that a conspiracy might have existed when no conspiracy was charged in the indictment. Jury Instruction No. 15A provided: “A defendant need not personally perform every act constituting the crime chаrged. Every person who willfully participates in the commission of a crime may be found guilty.” Appellant’s Br. at 4 (appendix). Anagnostou argues that this instruction invited the jury to speculate that a conspiracy existed between Anagnostou and Anthony, despite the fact the indictment contained no conspiracy charge. This contention lacks merit.
The challenged instruction is a pattern instruction approved by this Court, and, more importantly, does not contain the word “cоnspiracy.” Anagnostou was charged with using the mails in devising a “scheme to defraud,” making it appropriate to instruct the jury that Anagnostou need not have personally performed every act comprising the scheme. The government did not request a conspiracy instruction and nothing indicates the challenged instruction invited the jury to speculate about the existence of a conspiracy.
Affirmed.
Notes
. We emphasize that this is a case involving pre-indictment delay. The sixth amendmеnt protects defendants from
post-indictment
prosecu-torial delay by guaranteeing the accused the right to a speedy trial. The speedy trial clause protects against "oppressive pretrial incarceration,” "anxiety," and prejudice to one’s defense,
Barker v. Wingo,
The Supreme Court recently confronted the defendant’s burden of proving prejudice under the speedy trial clause in
Doggett v. United States,
— U.S. -,
Neither party has suggested that the Court's holding in
Doggett
might havе some ramifications in the pre-indictment delay context, and we doubt that it does. Aside from the different interests protected by the speedy trial clause and the due process clause, and the different balancing tests applicable in those two contexts,
Doggett
is silent on whether its holding upsets the long-standing requirement that defendants prove both actual prejudice and impermissible prosecutorial motive in establishing a due process violation from pre-indictment delay.
See Lovasco,
. We note that nothing suggests Anthony divulged any new information during that interview or in any way deviated from his previous statements to investigators.
