Mungin v. State, 141 So. 3d 138

Background

Victim Betty Jean Woods was shot in a convenience store in 1990; no direct eyewitness to the shooting but customer Ronald Kirkland testified at trial he saw a man (identified as Anthony Mungin) leaving the store shortly after the shooting. Mungin was convicted of first‑degree murder and sentenced to death.
Police recovered a .25‑caliber pistol from Mungin’s Georgia residence; ballistics linked the gun to the fatal bullet and to other shootings; other bad‑act evidence was admitted for identity.
Years later George Brown executed an affidavit saying he was the first person in the store, was alone for a period, and did not see anyone leave before he found the victim — a version inconsistent with Kirkland’s trial testimony.
Mungin filed a successive 3.851 motion asserting (a) newly discovered evidence from Brown; (b) Brady (undisclosed impeaching evidence) and Giglio (knowingly false testimony) violations based on the alleged conflict between Brown’s account and police reports; this Court remanded for an evidentiary hearing on Brady/Giglio but rejected newly discovered evidence relief earlier.
At the evidentiary hearing Brown was equivocal about what he told police at the scene; officers and the lead prosecutor testified they had no knowledge of Brown’s postconviction version; the postconviction court found Brown did not reliably tell police the later account and that the State did not willfully or inadvertently suppress it.
The postconviction court denied Brady and Giglio relief, denied a motion to disqualify the judge, and rejected cumulative‑error relief; the Florida Supreme Court affirmed.

Issues

Issue	Plaintiff's Argument (Mungin)	Defendant's Argument (State)	Held
Brady: Did the State suppress favorable impeaching evidence?	Brown’s affidavit impeaches Kirkland; police reports contradict Brown; suppression of that evidence was material.	Brown never reliably told police the postconviction account; officers and prosecutor were unaware of Brown’s later version, so nothing was suppressed.	Denied — no competent evidence that favorable evidence was suppressed; Brown was equivocal about telling police, so Brady prong two not met.
Giglio: Did the State knowingly present or fail to correct false testimony?	Kirkland’s testimony conflicted with Brown; prosecutor knew or should have known it was false and failed to correct it.	Prosecutor and law enforcement had no knowledge of Brown’s postconviction version; therefore they did not knowingly present false testimony.	Denied — petitioner failed to establish the prosecutor knew testimony was false (first two Giglio prongs).
Newly discovered evidence (earlier decided on appeal)	Brown’s statement would probably produce an acquittal on retrial.	Brown’s late, equivocal account lacks the necessary probability of acquittal; trial evidence still strong.	Previously rejected by this Court; not revived on remand.
Motion to disqualify / cumulative error	Prior appellate ruling on summary denial warranted disqualification; cumulative effect of errors requires relief.	An adverse prior ruling is insufficient for disqualification; all claims lack merit so cumulative error relief unwarranted.	Denied — prior adverse ruling alone is legally insufficient; cumulative‑error analysis not applied where claims are meritless.

Key Cases Cited

Brady v. Maryland, 373 U.S. 83 (1963) (prosecution must disclose materially favorable evidence)
Giglio v. United States, 405 U.S. 150 (1972) (prosecutor must correct known false testimony)
Strickler v. Greene, 527 U.S. 263 (1999) (Brady framework)
United States v. Bagley, 473 U.S. 667 (1985) (materiality standard for nondisclosure)
Franqui v. State, 59 So.3d 82 (Fla. 2011) (assess net effect of undisclosed evidence)
Jones v. State, 709 So.2d 512 (Fla. 1998) (standard for newly discovered evidence)
Mungin v. State, 689 So.2d 1026 (Fla. 1995) (direct‑appeal decision affirming conviction and death sentence)
Mungin v. State, 79 So.3d 726 (Fla. 2011) (prior opinion remanding Brady/Giglio claims for hearing)
Hurst v. State, 18 So.3d 975 (Fla. 2009) (deference to postconviction fact findings supported by competent substantial evidence)
Tompkins v. State, 994 So.2d 1072 (Fla. 2008) (Giglio elements and materiality test)
Rhodes v. State, 986 So.2d 501 (Fla. 2008) (false testimony harmless‑beyond‑reasonable‑doubt burden on State)
Walker v. State, 88 So.3d 128 (Fla. 2012) (no cumulative‑error relief when claims are meritless)
Mendoza v. State, 87 So.3d 644 (Fla. 2011) (past adverse rulings generally insufficient for judicial disqualification)
Williams v. State, 110 So.2d 654 (Fla. 1959) (Williams rule referenced for admission of other crimes evidence)