Littleton Police Department and the Douglas County Sheriff’s Department released body cam footage from the officer-involved shooting last Friday. Investigators identified the armed suspect as 25-year-old Deyon Marcus Rivas-Maestas and the deputy as Brad Proulx.According to the sheriff's office, Deputy Proulx spotted an SUV near County Line Road and Sante Fe Road that appeared to need assistance. When Deputy Proulx pulled over to help, Rivas-Maestas got out of the SUV with a rifle, investigators said.The video shown in the press conference Wednesday, you can see a clear shot of Rivas-Maestas approaching the deputy an "AR-15 type rifle."The Deputy gave the subject verbal commands," the sheriff's office stated. "The Deputy feared for his life and deployed his service weapon."