A former wide receiver at Princeton University, a doting father of two and a recent high school graduate were identified by family as three of the victims killed in the Wednesday truck attack in New Orleans.

At least 15 people were killed and more than 30 were injured when a 42-year-old U.S. citizen from Texas plowed a pickup into crowds on Bourbon Street celebrating the new year. He opened fire on responding officers and was killed, officials have said.

An Islamic State group flag was found…