Jamill Jones, 35, an assistant basketball coach at Wake Forest University in North Carolina, turned himself into police Thursday afternoon.
He's charged with third-degree assault, but those charges will likely be upgraded.
Police said he knocked out 35-year-old Sandor Szabo of Boca Raton, Florida last weekend in Long Island City.
Szabo, who was in New York City for a wedding, was knocking on a car window because he thought it was his Uber.
Police said Jones got out and punched Szaabo. He fell to the ground, hit his head and later died.