An 81-year-old man was struck and killed by a MARC commuter train in Gaithersburg this morning at 7:52 a.m., according to the Maryland Transit Administration. NBCWashington.com reports that the man was rushing across the tracks to try and make a train when he got hit by train 878 — the death will likely be classified as an accident, though Montgomery County police are investigating. The man reportedly lived but blocks away from the station. The incident caused major delays this morning as train 878 and others were severely delayed. Metro was accepting MARC tickets from Shady Grove into Washington to help alleviate the backup.