lo mataste

you killed him

→ lo
phrase Rare #30,784
you killed him Uses the informal singular tú form. “Lo” can refer to a masculine person or thing, so it can also mean “you killed it.”
SP: ¿Por qué lo mataste?
EN: Why did you kill him?

No lo mataste , fui yo.

You didn't kill him, I did.

— La asistenta (2025)

Y luego lo mataste.

And then you killed him.

— Guardianes de la noche (2004)

lo mataste, ¿no es así?

You killed him, didn't you?

— Hierro 3 (2004)

Lo mataste.

You killed him.

Entonces, ¿por qué lo mataste?

So, why did you kill him?

— Broker (2022)

Oye, ¿lo mataste?

Hey, did you kill him?

— Gangs of Wasseypur. Parte 1 (2012)

Tú no lo mataste.

You didn't kill him.

— Guardianes de la noche (2004)

Lo mataste y no lo olvidarás.

You killed him, and you won't forget it.

— ¡Vivir! (1994)

Fuiste tú quien lo mataste.

You were the one who killed him.

— ¡Vivir! (1994)