10 Movie Villains That Killed Other Villains
6. Killmonger Killed Ulysses Klaue - Black Panther
It happened with von Strucker in Avengers: Age of Ultron, it happened with Crossbones in Captain America: Civil War, and the same fate also awaited Ulysses Klaue in Black Panther. All were secondary villains killed in their second MCU appearance before the end of the first act.
Klaue was introduced as an antagonist in Age of Ultron, and was the man who provided Tony Stark's ill-advised A.I. with the Vibranium that ultimately became Vision's body. Though he was one arm lighter after coming face to face with Ultron, he at least escaped with his life.
The same couldn't be said about his dealings with N'Jadaka. The Wakandan Prince worked with Klaue to steal more Vibranium, but when Killmonger broke his accomplice out of prison, it was only so he could kill him. Klaue himself was a ruthless murderer, but had no answer to the man literally known as Killmonger.
N'Jobu's son knew of the history between Ulysses Klaue and the Wakandans, and used his corpse not only as his ticket into the country, but to rally support as the challenger to T'Challa's kingdom from the likes of W'Kabi and the Border Tribe. This death was essential to the villain's ultimate plan.