About 24 hours after asking the public's help in finding a suspect involved in a Four Corners robbery, police have made an arrest.

Wednesday night Gallatin County Sheriff’s Office arrested Marcus Venturini, a 20-year-old Bozeman resident, for the armed robbery of Casey’s Corner gas station on 26 November. The Sheriff would like to thank the public for their assistance with this case.

Venturini allegedly walked through the store and into the bathroom where he remained until the store was empty of patrons. He then dawned a ski mask seen on his head and detained the store clerk in a back room with two 12-inch kitchen knives.

Authorities believe Venturini was in the store over 15 minutes until the crime was complete. He then exited the back of the store when a patron entered, running past the Carriage House Car Wash and or Summit Motor Sports to an unknown location/vehicle.

During the course of interviewing the suspect before his arrest, deputies determined that Venturini was a former employee of Casey's Corner and had quit about a month before the robbery. Venturini was arrested by the Gallatin County Sheriff's Department on Wednesday night around 6:30pm and transported to the Gallatin County Detention Center where he is being held on bond.

Here's one of the photos the Sheriff's department released that led to the arrest.

photo courtesy of the Gallatin County Sheriff's Office