Sentry Gun Trap

## Design and Function

This trap consisted of a machine gun, which was mounted to a tripod. It was used for ambushes and to protect certain areas against invaders. The gun was connected to a sensor. Once this sensor detected an invader, the gun emerged from behind a cover and automatically aimed and fired at all targets in its range.

## History

### Mark Hoffman's Hideout

At one point, the identity of Detective Mark Hoffman, successor of the later John Kramer, better known as the Jigsaw Killer, was revealed to the Metropolitan Police Department by Jill Tuck, Jigsaw's ex-wife. Therefore, Hoffman created a complex plan to invade the police station and get his revenge on her after she was taken into protective custody by Officer Matt Gibson. Therefore, he set up a surveillance room in a hidden area of Pete's Auto Body, a junkyard at 58th Street, and secured it with the sentry gun. Afterwards, he wrote the words "Gibson, see for yourself" on a mirror hanging on the hidden door to the room and sent a video to Gibson, in which he demanded Jill Tuck.

A few hours later, Gibson was informed by Officer Palmer that she was able to trace Hoffman's mail to the junkyard, reason why he returned to there from the Clear Dawn Psychiatric Hospital, after he and a SWAT team raided the place in an attempt of rescuing the victims from Hoffman's new game. Gibson saw two cops, and ordered them both to get their shotguns and follow him. The two cops obeyed immediately. After this, Gibson and the two officers went to the toilet room where Hoffman had written the message for Gibson on the mirror. After securing the room, he quickly realized that the wall with the mirror was actually a hidden door. Therefore, he took the shotgun from police officer 1 and used it to smash the mirror, revealing a hole. After that, he broke through the door and entered a hidden hallway along with the officers. Thereby, they finally reached a surveillance room where they saw the corpse of Dan, one of the four victims of a trap previously set in that place, in front of the monitors and with a hood covering his head. Thinking it was Hoffman, Gibson and the cops aimed their guns at him and ordered him to show his hands. The person however didn't react. While holding him at gunpoint, Gibson carefully approached and ultimately kicked him off the chair. Upon doing so, he realized that the figure wasn't Hoffman, but Dan. Initially confused, Gibson noticed the pictures in the wall which showed the victims of Bobby's game, and the monitors, which showed rooms from the police station, the junkyard and the Clear Dawn Psychiatric Hospital.

Gibson then took a look at the angel statue from Hoffman's video standing on a pedestal. The police officer 1 asked Gibson what was happening. Gibson answered that Hoffman had hacked their camera security system and has been watching them the whole time. Gibson then realized that Hoffman was the one who caused the explosions in the junkyard in order to distract the police and be able to hide himself in Dan's body bag and infiltrate the station through the morgue. Gibson saw through one of the monitors that Dr. Heffner was preparing himself for the next autopsy with the bag in which Hoffman was inside of. Therefore, he called Palmer and ordered her to call all officers back to the station immediately. Palmer reacted with confusion. However, before he could tell her the reason for his panic, a sentry gun emerged behind him and started to fire before he could react. Gibson and the two other officers were brutally gunned until they fell dead while Palmer listened to the gunfire on the phone. Not knowing what just happened, Palmer started to call Gibson by his name and ask him if he's still there.