Medical student, 26, is left horrifically-injured after being pushed into lake by friends even though he could

Medical student, 26, is left horrifically-injured after being pushed into lake by friends even though he couldn't swim - with group then watching him drown for 20 minutes - Christopher Gilbert, 26, was with a group of friends at Lake D'Arbonne in Louisiana when he was 'pushed' into the water - His mother claimed that 'everyone' knew he could not swim and that his friends did nothing as he disappeared under the surface - He was eventually hauled to the …