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NCIS: Who Is The Port-To-Port Killer, And What Happened To Him?

"NCIS" is all about murder and mayhem, but the crimes of the Port-to-Port-Killer, aka Jonas Cobb (Kerr Smith), really make an impact on Leroy Jethro Gibbs (Mark Harmon) and his team. This sadistic sailor causes mayhem throughout Season 8, assassinating soldiers everywhere from Japan to Spain. He's quite a formidable threat, and his origin story is pretty shady.

Cobbs is vicious, but the CIA is partly to blame for creating the Port-to-Port Killer. He's the product of a secret experimental program called "Frankenstein," which was designed to turn sailors into emotionless killing machines on the battlefield. Suffice it to say that the experiment backfired spectacularly, but it did equip the serial slaughterer with the tools he needed to be an effective assassin.

Of course, some "NCIS" viewers will associate the Port-to-Port Killer with one of the series' most heartbreaking moments. He's responsible for Mike Franks' (Mike Watson) death on "NCIS," but Gibbs' elderly mentor deserves some credit for putting up a good fight. Sadly, it isn't enough to thwart the killer and prevent the tragic ending of "NCIS" Season 8. So, how does the team eventually put a stop to Cobbs' atrocities?

Gibbs and Vance stop the Port-to-Port Killer

While the United States government is arguably the biggest villain for creating the project that turned Jonas Cobb into a bloodthirsty villain, his crimes make him difficult to sympathize with. He takes pleasure in tormenting people, and he's willing to go to extreme lengths to do it — a prime example being the time he puts a severed eyeball in Agent Tony DiNozzo's (Michael Weatherly) drink. Now, that's gross.

Fortunately, the good guys are able to end the Port-to-Port Killer's reign of terror in the Season 8 finale. He hands himself in so that he can kidnap some of the NCIS agency's best and brightest officers, as he plans on turning them into weapons of destruction. Naturally, he escapes custody with his targets, but Gibbs and Leon Vance (Rocky Carroll) track down the villain before he can complete his experiment. Cobbs isn't willing to hand himself in again, though, and he dies with a smile on his face after tumbling out of a window. In a weird way, it's a happy ending for everyone.

If you enjoyed this article, check out the untold truth of "NCIS."