Use "убийца" in a sentence

1. Может наш убийца прятал концы.

Maybe our killer was tying up loose ends.

2. Доу и убийца оба участвовали в игре.

Doe and the killer were playing the game, too.

3. В данном случае, убийца увидел какой у жука здоровенный хер, и стал бешено завидовать.

The killer saw the size of the bug's dick and became insanely jealous.