What Phillie hit .400 three times?

Today’s question: The Philadelphia Phillies had a slugger who hit .400 three times in his great career. Who was this man, whose career was shortened by a mysterious death?

Yesterday’s question and answer: What All-Star from the Cavaliers suffered a knee injury late in Game 1 of the 2015 NBA Finals that caused him to miss the rest of the series? The answer is Kyrie Irving. Irving had been nursing a nagging leg injury before the NBA Finals and he ended up fracturing his left kneecap in Game 1. Kevin Love also missed the NBA Finals as he had dislocated his left shoulder in Game 4 against the Boston Celtics.