Jack Henderson was a Human man and a member of Starfleet security in the 24th century. He'd recently graduated from Starfleet Academy when he served aboard the USS Starbound circa 2359, on a training cruise for graduates, as one of the trainees. With his great size and strength, Henderson could not be knocked over by any of the other Security personnel. Henderson was shot when Orions stormed the bridge. (TNG novel: Survivors) It is not clear if Henderson was killed as well.