TALLAHASSEE, Fla. — Florida State quarterback and Heisman Trophy candidate Jameis Winston will not be charged with sexually assaulting a woman who accused him of raping her about a year ago, a prosecutor said Thursday. State Attorney Willie Meggs made the announcement at a news conference, saying the woman's memory lapses of the events last December were problematic and there was not enough evidence to win a conviction. The woman told police she had been drinking at a bar with friends before the alleged assault took place at an off-campus apartment.