what happened
Es posible que él sepa lo ocurrido.
He may know what happened.
Tom se siente responsable por lo ocurrido.
Tom feels responsible for what happened.
No puedo explicarme lo ocurrido.
I can't explain what happened.
I've already forgotten what happened.
Mejor dime la verdad de lo ocurrido.
Just tell me the truth about what happened.
— Reservoir Dogs (1992)