In 1968, Kennedy became a leading candidate for the Democratic nomination for the presidency by appealing to poor, African American, Hispanic, Catholic, and young voters. His main challenger in the race was Senator Eugene McCarthy. Shortly after winning the California primary around midnight on June 5, 1968, Kennedy was mortally wounded when shot with a pistol by Sirhan Sirhan, a 24-year-old Palestinian, allegedly in retaliation for his support of Israel following the 1967 Six-Day War. Kennedy died 25 hours later. Sirhan was arrested, tried, and convicted, though Kennedy's assassination, like his brother's, continues to be the subject of widespread analysis and numerous conspiracy theories.