Complex sentence: One of the students, DeLuca, at the hospital steals a strange vial, enclosing it in his thermos, but he is shot by the soldiers as he attempts to escape through the woods and the thermos is dropped.
Split into simpler sentences: One of the hospital students, DeLuca, steals a strange vial, enclosing it in his thermos. He is later shot by the soldiers as he attempts to escape through the woods and the thermos is dropped.