I think the question here was why if all people was he chosen as a shooter on the Galante hit.
His father and uncle were dead at the time.

That’s an important hit
It should have only went to someone that was trusted.

From what I read after the 3-captains hit he was looked upon as a junkie.

Maybe they planned on whacking him after the hit, but he got locked up and they weren’t able to get to him?