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Whitaker v. Mills — Magistrate judge recommends dismissing claims that would undermine an intact conviction

Reported / Citable

Case
Jamison Whitaker v. Ryan Mills
Court
U.S. District Court for the Northern District of Texas
Judge
David L. Horan
Date Decided
August 18, 2026
Docket No.
3:24-cv-01064-K-BN
Topics
Section 1983; Heck bar; Search and seizure; Supplemental jurisdiction

Background

Jamison Whitaker filed a pro se civil-rights complaint against Midlothian police officer Ryan Mills while Whitaker was incarcerated in the Ellis County jail. Whitaker sought $1 million and dismissal of his criminal case, alleging that Mills was involved in an unlawful search of his vehicle that uncovered a weapon. Because the related state criminal proceedings were then pending, the district court stayed and administratively closed the civil action under Younger v. Harris.

After Whitaker’s conviction became final, the court reopened the case. A jury had convicted him of making a terroristic threat after a coworker reported that he had threatened to shoot up his workplace. On direct appeal, Whitaker unsuccessfully challenged the admission of a rifle that a supervisor removed from his vehicle after his arrest and later gave to police. In this civil action, Whitaker alleged that Mills participated in the purported burglary of his vehicle using keys taken during booking and that the weapon was an inoperable prop.

The Court’s Holding

U.S. Magistrate Judge David L. Horan recommended dismissing Whitaker’s Section 1983 claims without prejudice under Heck v. Humphrey. Because the claims attacked the gun evidence underlying the terroristic-threat conviction, success in the civil action would call the conviction’s validity into question. Whitaker acknowledged that the conviction had not been reversed, invalidated, expunged, or otherwise set aside.

The magistrate judge concluded that Heck barred both Whitaker’s damages demand and his request to have the criminal case dismissed. The recommended dismissal was without prejudice, allowing a later suit if Whitaker eventually satisfies Heck’s favorable-termination requirement.

The magistrate judge also recommended that the district court decline supplemental jurisdiction over Whitaker’s conclusory state-law theft and burglary claims. The balance of the statutory and common-law factors favored leaving those claims for a state forum after dismissal of the federal claims.

Key Takeaways

  • A Section 1983 plaintiff may not use a civil action to challenge evidence underlying an outstanding conviction when success would imply that the conviction is invalid.
  • Heck’s favorable-termination rule applied to Whitaker’s requests for both monetary and nonmonetary relief.
  • The magistrate judge recommended dismissal without prejudice and relinquishment of supplemental jurisdiction over any remaining state-law claims.

Why It Matters

The recommendation illustrates that constitutional claims attacking the evidence supporting a conviction generally cannot proceed under Section 1983 while the conviction remains intact. The proper disposition under Heck is without prejudice, preserving the possibility of a later civil action if the conviction is overturned or otherwise invalidated.

It also underscores the distinction between a magistrate judge’s recommendation and a final district-court ruling: the parties had 14 days to file specific objections, and District Judge Ed Kinkeade would decide whether to accept or adopt the recommendation.

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