Updated at 12:01 p.m. ET
John Forbes Nash Jr., the Nobel laureate known for his groundbreaking work on game theory and differential equations, was killed along with his wife in a taxi crash on the New Jersey Turnpike, police say. He was 86.
His death was first reported by NJ.com citing a police official. NPR has confirmed the report through longtime colleague Louis Nirenberg. The couple were killed on Saturday.