Teen Wolf, Season 5

[Mason has just saved Scott from Liam and is helping him walk out of the library]

Mason:
Scott, what happened?

Scott:
[groans] It's the supermoon. It was just...

[Just then, Theo appears, looking furious]

Theo:
Bad timing. I mean, seriously. You couldn't have waited five minutes?

[Theo backhands Mason so hard he is thrown onto the floor before turning back to Scott]

Theo:
I should've stayed. I should've made sure.

Scott:
[smirks] Because now you have to kill me yourself. [Theo glares at them] They're still mine.

Theo:
Maybe not yet, but they'll come around.

Scott:
Not for you. They're not like you. They never will be.

Theo:
[sneers] Because I'm a chimera? Because I'm not a real werewolf?

Scott:
Because you're barely even human.

[Theo becomes so furious that he plunges his claws into Scott's chest and rips it open, killing him]