Update: Michael Sistilli's body was discovered at Three Way Campers around 4:30 p.m. on Wednesday, Apr. 13.
Investigators are treating his death as a suicide.
The Marietta Police Department would like to thank everyone who assisted in the search for Sistilli.
MARIETTA, Ga. -- The Marietta Police Department is searching for a missing Dallas man.
Michael Sistilli, 43, was last seen at Three Way Campers (1400 Cobb Parkway North, Marietta, 30062), where he works, around 3 p.m. on Monday, Apr. 11. Employees watched him leave the area without his car.
Sistilli was reported missing by his family at 8 p.m. on Monday.
He was last seen wearing a white Three Way Campers employee shirt, blue jeans and white sneakers.
Marietta officers and K-9 units from the Cobb County Sheriff's Office have searched the area with no sign of Sistilli.