A man riding a mountain bike was struck by a truck and killed on Roosevelt Blvd in Northeast Philadelphia. NORTHEAST PHILADELPHIA - A man, riding a mountain bike on Roosevelt Boulevard, in Northeast Philadelphia, was struck and killed by a truck, investigators said.According to officials, the victim was riding a mountain bike in the northbound lanes of Roosevelt Boulevard when he was hit by someone operating a Ford F150 near Summerdale Avenue Tuesday, around 7:30 in the evening.The man, thought to be somewhere between 20 and 30-years of age, was taken to Temple University Hospital, where he was pronounced dead.According to police, the driver of the white and blue truck left the scene of the accident.Authorities said an investigation into.