(KRON) -- A teenager was arrested Monday after a Brentwood officer spotted a stolen firearm inside a car parked in a grocery store handicap spot, according to the Brentwood Police Department. The officer checked out the vehicle at around 6 p.m. outside of Trader Joe’s on 5451 Lone Tree Way because it did not have a placard but was parked in a handicap space, police said. As the officer approached the vehicle, they saw a handgun with an extended magazine in plain view inside the car. (Brentwood Police Department) The vehicle’s owner, identified as Michael Sherman, 18, of San Leandro, returned to the car as the officer was on the scene. An investigation determined that the firearm was stolen, Brentwood PD said. FBI serves warrant at home of San Leandro councilmember Sherman was arrested for possession of a stolen firearm. He was booked into the Martinez Detention Facility.