Michael Carlos Cooper Wiest was indicted for three bank robberies under 18 U.S.C. § 2113(a), and three related counts of possession of a firearm in furtherance of a crime of violence in violation of 18 U.S.C. § 924(c)(1)(a). Wiest pled not guilty, and moved to suppress some evidence. His motion to suppress was denied. The jury found Wiest guilty on all counts, and he was sentenced to a total of 696 months (58 years). Wiest appeals, arguing that (1) the district court 1 erred in denying his *909 motion to suppress, (2) the evidence was insufficient to support his convictions, and (3) the mandatory minimum sentence of 684 months for three violations of § 924(c) violates the Eighth Amendment. Having jurisdiction under 28 U.S.C. § 1291, this court affirms.
I.
A lone robber held up a bank and two credit unions in Des Moines during the week before Christmas in 2006. Each time, witnesses identified the robber as a polite, partly masked, short, Hispanic male with a long-barrel gun. Surveillance video recorded each robbery. Police focused on Wiest as a suspect when two callers, after viewing local broadcasts of the robbery, said the robber resembled Wiest. One caller also told police that she had recently seen Wiest with a “wad of cash” in his wallet.
Police traced Wiest to Sheldon, Iowa, where he was staying in the home of his girlfriend’s stepmother (Deb Martins). He was arrested on outstanding warrants. Wiest’s clothes, found in the laundry room of the home, matched those the robber wore in two robberies. In the trunk of his girlfriend’s car was a gun (.22 caliber rifle with a broken stock) matching the description of the gun used in the robberies. Wiest moved to suppress the clothing from the laundry room, arguing that police did not have a warrant to search the house and that Ms. Martins did not have apparent authority to consent to the seizure of his clothing. While the officer who recovered the clothing stated that he asked Ms. Martins if Wiest had any belongings in her home, Ms. Martins says she voluntarily offered his clothing to police. The district court denied the motion to suppress.
At trial a witness testified he had seen the .22 caliber rifle with the broken stock in Wiest’s car, and Wiest had told him not to touch it because it was loaded and that he had used it “for a couple different jobs.” Two other witnesses testified that Wiest said he committed the robberies. The jury also saw surveillance video from two robberies, where the robber appears to be wearing clothes that look like some of the clothes recovered from Ms. Martins’s home.
II.
A.
Wiest argues that the district court erred in denying his motion to suppress the clothing found in Ms. Martins’s home. He contends that she acted as an instrument or agent of the government when she took his clothes and turned them over to police, in violation of the Fourth Amendment.
This court reviews de novo a district court’s conclusions of law regarding a motion to suppress, and its findings of fact for clear error.
United, States v. Flores-Sandoval,
Wiest argues that Ms. Martins was a “government actor” for Fourth Amendment purposes.
Although the Fourth Amendment does not apply to a search or seizure, even an arbitrary one, effected by a private party on his own initiative, the amendment protects against such intrusion if the private party acted as an instrument or agent of the government.... Whether a private party should be deemed an agent or instrument of the government for Fourth Amendment purposes necessarily turns on the degree of the government’s participation in the private party’s activities, a question that can only be resolved in light of all the circumstances.
Skinner v. Railway Labor Executives’ Ass’n,
In this case, the government did have knowledge of Ms. Martins’s conduct (although it is not intrusive for her to take clothes out of her own washer and dryer). There was conflicting testimony whether Ms. Martins intended to assist law enforcement or instead acted to further her own purposes, and similarly whether she acted at the government’s request. The on-scene officer says he asked her if Wiest had any property in the house, but Ms. Martins testifies that she, unprompted, turned Wiest’s clothes over to police because she didn’t want them left in her home. The district court found that when Ms. Martins turned the clothes over, it was a “voluntary and unsolicited act,” and this is not clear error. In light of all the circumstances, Ms. Martins was not an instrument or agent of the government for Fourth Amendment purposes. Because the Fourth Amendment does not apply to her conduct, the clothing was properly admitted.
B.
Wiest argues that the evidence was insufficient to support his convictions. This court reviews de novo the sufficiency of the evidence to sustain a conviction.
United States v. Honarvar,
Wiest essentially contends that (1) the clothing seized either does not match clothing worn during the robberies, or is not so distinctive as to tie him to them, (2) the witnesses who link Wiest to the gun found in the trunk of his girl
*911
friend’s car and who said he admitted to the robberies are not credible, (3) no money was ever recovered, and (4) no bank employees positively identify Wiest. However, the jury saw the seized clothing, the surveillance tapes of the robberies (allowing comparison to the robber’s clothing), and the firearm seized from the girlfriend’s car (which matched the firearm that one witness saw in Wiest’s car, and apparently matched the firearm in the surveillance tapes). The jury also heard testimony that Wiest said he used the gun “for a couple different jobs.” Two other people testified that Wiest told them he committed the robberies. The jury’s credibility determinations are virtually unreviewable on appeal.
United States v. Trogdon,
C.
Wiest argues that the mandatory minimum sentence of 684 months (57 years) for his three 18 U.S.C. § 924(c) convictions violates the Eighth Amendment. This court reviews de novo an Eighth Amendment challenge to a sentence.
United States v. Paton,
“The Eighth Amendment, which forbids cruel and unusual punishments, contains a ‘narrow proportionality principle’ that ‘applies to noncapital sentences.’ ”
Ewing v. California,
This court has adopted Justice Kennedy’s analysis in
Harmelin
to determine whether a sentence is “grossly disproportionate” to a crime and thus violates the Eighth Amendment.
See Henderson v. Norris,
Within the threshold comparison, this court looks first to the gravity of the
*912
crime, considering the harm caused or threatened to the victim or to society, and the culpability and degree of the defendant’s involvement.
Henderson,
As to culpability, Wiest argues that he was 18 at the time of the offenses, all the robberies were committed within a week, and he has no prior robbery convictions. The government counters that Wiest has accumulated a total of eight criminal history points despite his youth, and that he wrote a letter to a friend from jail threatening a witness while awaiting trial.
As for the sentence imposed, Wiest contends that he would have been sentenced to 210-262 months under the guidelines if he were charged with the robberies and given a five-level increase for brandishing a firearm. He also notes that he would have received a much shorter sentence under Iowa law. These arguments are intrajurisdictional and interjurisdictional comparisons inappropriate for the threshold inquiry.
See Harmelin,
Although this court has not directly addressed whether consecutive sentences under § 924(c) violate the Eighth Amendment, other circuits uphold similar sentences under § 924(c).
See United States v. Walker,
*913 III.
The judgment of the district court is affirmed.
Notes
. The Honorable John A. Jarvey, United States District Judge for the Southern District of Iowa.
. The Supreme Court has heard argument in
Sullivan v. Florida,
No. 08-7621,
