Jack R. Sliney v. State of Florida

Summary

The court affirmed the summary denial of Sliney’s second successive postconviction motion challenging his death sentence under the Eighth Amendment. It held that the motion was untimely because the 2021 scientific manual supplied additional evidence rather than previously unknown facts underlying his claims, and therefore did not restart the one-year filing period. The court did not reach the merits of extending categorical death-penalty protection to offenders aged 18 through 21.