Aрpellants, the heirs of Jesús’ Ríos Qui-ñones (Ríos), allege that local plenipotentiaries conspired to convict Rios for a murder that he did not commit and that a different set of public officials failed to provide Rios with adequate medical cafe during his incarceration (leading to his premature death). The district court dismissed the complaint, and the plaintiffs appeal. We affirm (though our reasoning diverges at times from that of the lower court).
I. BACKGROUND
If recited here in full flower, the aver-ments in the complaint would seem to have been lifted from the pages of a John Grisham thriller. Our tale, however, is decidеdly less gripping, as many of the more sensational allegations are irrelevant to the issues on appeal. We limit our narrative accordingly.
See Garita Hotel Ltd. Partnership v. Ponce Fed. Bank, F.S.B.,
In 1984, a jury convicted Rios, David Carrión Ramos (Carrión), and Rafael Mén-dez Kereadó (Méndez) of first degree murder in connection with the slaying of José Treviño. The Puerto Rico Supreme Court rejected the trio’s appeals. The three men subsequently sought a new trial in the nisi prius court, alleging that they had unearthed previously undiscovered evidence which proved their innocence. According to their proffer, this evidence indiсated that four other persons murdered Treviño, and that the prosecutor, Miguel Rivera Garcia (Rivera), endeavored to frame Ríos, Car-rión, and Méndez because Rivera’s nephew was one of the guilty parties. After a hearing, the presiding judge found the new evidence unpersuasive and denied the defendants’ motion. No appeal was taken.
Camón next sought habeas corpus relief in the federal district court pursuant to 28 U.S.C. § 2254 (1994 & Supp. II 1996), and Rios followed suit.
1
After the cases languished for nearly four years, Carrión and Rios filed amended petitions, representing that they had located a brand-new witness who could provide proof of their innоcence. Since the two had not presented this evidence to the trial court, the respondents promptly moved to dismiss the amended ha-beas petitions on exhaustion grounds.
See Adelson v. DiPaola,
On April 9, 1996, various members of Rios’s family brought suit in the district court against Rivera, Rivera’s former supervisor, several Puerto Rico police officers, and one of Treviño’s “actual” murderers. Invoking 42 U.S.C. § 1983 (1994), they averred that these defendants had succeeded in framing Rios for Treviño’s murder, thereby spawning an unconstitutional conviction and sentence. The plaintiffs added a bevy of pendent tort claims stemming from Rios’s conviction and consequent incarceration. These claims sounded in negligence, malicious prosecution, abuse of process, false arrest, and intentional infliction of emotional distress. Finally, the plaintiffs asserted claims for negligence and deprivation of civil rights against several “John Doe” defendants, never more sрecifically identified, who allegedly acted carelessly and with deliberate indifference to Rios’s need for medical care during his immurement.
The appellees moved to jettison the complaint for failure to state any claim upon which relief could be granted or, in the alternative, for summary judgment.
See
Fed.R.Civ.P. 12(b)(6), 56. The district court (Casellas, J.) determined that
Heck v. Humphrey,
II. ANALYSIS
We afford plenary review to a district court’s grant of a motion for dismissal under Fed.R.Civ.P. 12(b)(6).
See McCoy v. Massachusetts Inst. of Tech.,
A
The appellants’ main section 1983 claim hinges on the assertion that Rios’s convictiоn and subsequent imprisonment were unconstitutional. In them complaint, they allege that the police officers who investigated Treviño’s slaying and the prosecutor who tried the case spun a web of lies to ensure Rios’s conviction, and, in the bargain, coerced witnesses to prevaricate and shielded the actual killers. To make matters worse, the complaint alleges, Rivera and his cohorts then undertook a pattern of deceit to conceal their lawlessness.
Assuming, purely for argument’s sake, that the appellants could prove these assertions, we nonetheless must uphold the district court’s disposition. The
Heck
Court ruled in no uncertain terms that when a section 1983 claimant seeks “to recover damages for allegedly unconstitutional conviction or imprisonment,” he “must prove that the conviction or sentence has been reversed
on
direct appeal, expunged by executive оrder, declared invalid by a state tribunal authorized to make such determination, or called into question by a federal court’s issuance of a writ of habeas corpus.”
The appellants counter that strict application of
Heck
works a fundamental unfairness in this case. After all, Rios was attempting to impugn his conviction when
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death intervened. Although • this plaint strikes a respоnsive chord, it runs afoul of Heck’s core holding: that annulment of the underlying conviction is an element of a section 1983 “unconstitutional conviction” claim.
See
B
Although the district court reached the correct result with respect to the unconstitutional conviction and imprisonment claims, it dismissed the appellants’ action without prejudice, suggesting in dictum that if Carrion ultimately succеeds in reversing his conviction, then the appellants “might be able to ... bring this [section] 1983 action.”
Figueroa Echevarria,
We are skeptical that a section 1983 claimant can satisfy the
Heck
regimen by arguing a theory of reversal by proxy. That said, however, we decline to grapple with the appellees’ argument. A party who neglects to file a cross-appeal may not use his opponent’s appeal as a vehicle for attacking a final judgment in an effort to diminish the appealing party’s rights thereunder.
See Morley Constr. Co. v. Maryland Cas. Co.,
C
In a curious gambit designed to skirt the obstacles that
Heck
interposes, the appellants asseverate that Judge Laffitte improperly terminated Rios’s and Carrion’s habeas petitions in 1996 and 1997, respectively, and that this court erroneously dismissed an appeal from the latter order. The short answer to this line of argument is that the appellants did not raise these contentions below, and they are thus foreclosed from unveiling them for the first time on appeal.
See Teamsters, Chauffeurs, Warehousemen and Helpers Union, Local No. 59 v. Superline Transp. Co.,
The slightly longer, but equally dis-positive, answer is that the appellants’ gambit amounts to an attempt to collapse the habeas proceedings into their section 1983 action, thereby creating a legal chimera through which they seek simultaneously to invalidate Rios’s conviction and to recover damages.
Heck
forecloses this type of hybridization and makes the impugning of an allegedly unconstitutional conviction
in a separate, antecedent proceeding
a prerequisite to a resultant section 1983 action for damages.
See Heck,
In all events, the appellants lack standing to press the habeas argument. Although a state prisoner need not always pursue a hаbeas petition in person,
see
28 U.S.C. § 2242 (1994) (stipulating that “someone act
*82
ing on [the state prisoner’s] behalf’ may seek the writ), “next friend” habeas petitions are rare. To bring such a petition, the filing party must show both that she is proceeding in the prisoner’s behalf and that there is a valid reason why she is better situated than the prisoner to pursue the writ.
See Whitmore v. Arkansas,
Whether or not the appellants could satisfy this two-part test with respect to Rios is an academic question. Rios’s death during the pendency of his habeas petition rendered that action moot, and no earthly circumstance can revive it.
See Knapp v. Baker,
For these reasons, then, the appellants’ belated collateral attack on a collateral attack to a state conviction is doomed to failure.
D
Judge Casellas held that the appellants’ failure to satisfy the
Heck
prerequisites swept the board, and he dismissed the entirety of their complaint.
See Figueroa Echevarria,
The appellants’ secondary section 1983 claim does not challenge the “fact or length of [Rios’s] confinement.”
Heck,
In the final analysis, however, this error is harmless because the dismissal of the deliberate indifference claim is supportable on an alternate ground. The complaint does not accuse Rivera or any other named defendant of deliberate indifference to medical needs,
4
but levels this charge against various “John Doe” defendants. In the seventeen months that elapsed between the filing of the complaint and the entry of judgment, the record discloses no attempt by the appellants to identify or serve any of the
*83
anonymous defendants allegedly responsible for Rios’s deficient medical treatment. Under Fed.R.Civ.P. 4(m), a district court may dismiss a complaint without prejudice as to a particular defendant if the plаintiff fails to serve that defendant within 120 days after filing the complaint. Moreover, a district court otherwise prepared to act on disposi-tive motions is not obligated to “wait indefinitely for [the plaintiff] to take steps to identify and serve ... unknown defendants.”
Glaros v. Perse,
In a similar vein, we affirm the district court’s dismissal of the appellants’ pendent Puerto Rico law claims, but rest our holding on a basis somewhat different from that envisioned by the lower court. The appellants premise federal jurisdiction on the section 1983 claims.
See
28 U.S.C. § 1331 (1994) (conferring jurisdiction for actions that “aris[e] under” federal law). Because the district court dismissed those claims at an early stage, it was fully authorized to dismiss all pendent causes of action withоut prejudice.
See Martinez v. Colon,
III. CONCLUSION
We need go no further. Factually, this is a troubling case. The appellants’ allegations, if true, cry out for remediation. But the appellants have proceеded down the wrong path in their quest for justice. Settled principles of law require that we affirm the judgment below, remitting the appellants to other, non-federal remedies.
Affirmed.
Notes
. Méndez (who suffered from terminal cancer) received a gubernatorial pardon. He is now deceased.
. In light of this ruling, the district court did not address the defendants' alternative motions for summary judgment.
See Figueroa Echevarria v. Rivera Garcia,
. We are mindful that dicta from concurring and dissenting opinions in a recently decided case,
Spencer v. Kemna,
— U.S. -,
. To the extent, if at all, that paragraph 61 of the complaint can be read to chаrge the named defendants with deliberate indifference to medical needs, that legal conclusion is free-floating. The complaint alleges no facts, either direct or inferential, that would suggest anything beyond the following scenario: Rios died while in a Puerto Rico prison under the care of governmеnt employees and, therefore, the named defendants are liable for his death. This allegation, if made at all, is nothing more than a bald assertion, not sufficient to survive a motion to dismiss.
See Aulson v. Blanchard,
