By Andrew Holleran Dwayne Haskins, the former Ohio State Buckeyes star quarterback who went on to play for Washington and Pittsburgh in the NFL, died on Saturday. He was 24. The former first-round NFL Draft pick was killed by a dump truck while walking across a highway in Florida, according to reports. Haskins was reportedly down in Florida training with some of his Pittsburgh Steelers teammates. Haskins shared a video of Steelers running back Najee Harris on his Instagram account on Friday. “I am devastated and at a loss for words with the unfortunate passing of Dwayne Haskins,” Mike Tomlin s…