A man who was struck and killed early Saturday by a driver in Boynton Beach was identified Sunday by the Palm Beach County Sheriff’s Office. Robert Elsmore, 60, of Jupiter, was hit by a vehicle shortly before 2 a.m. Saturday as he was walking southbound in the 6000 block of Old Congress Avenue, the agency said in a press release. Elsmore was pushing a wheelchair near the center line of the road, when he was hit by a minivan, the report said.