Television report. From The Mysteries of Laura, S1 E20 (5/7/15), “The Mystery of the Crooked Clubber”:
So, he’s not our killer, he’s not on the getaway squad, he’s just some jackhole throwing himself off skyscrapers in midtown.
The item jackhole was new to me, but instantly recognizable as derogatory slang, doubtless a portmanteau involving derogatory (and strongly taboo) asshole and either derogatory (and mildly taboo) jackoff or merely derogatory jackass. Neither jackhole nor the alternative avoidance term jerkhole is in either of the compendious slang dictionaries (Lighter and Green), but in this case, Urban Dictionary provides real gold for jackhole: