Before the game starts, mafia must elect a townie to be the gunbearer. That player has until deadline runs out to shoot another player. If the gunbearer hits scum, they keep the gun. If the gunbearer hits town, the gunbearer dies and the targeted townie becomes the new gunbearer.
If the gunbearer does not shoot by deadline, they die and the mafia pick a new gunbearer.
The gunbearer is always announced and confirmed as innocent.