Teen thug points gun in face of Marine Corps veteran, demands his car keys. But punk definitely picked wrong victim.

A teenager was caught on surveillance video pointing a gun in the face of a U.S. Marine Corps veteran and demanding his car keys in Maryland earlier this week, but things didn't work out so well for the punk — or his three friends.Jheyco Borda — who was trained in hand-to-hand combat while in the military — told WTTG-TV he was working on his pickup truck near Oxon Hill High School around 4:30 p.m. Wednesday when four teenagers approached him on the sidewalk.'Once a Marine, always a Marine.'Borda...