According to Stafford, the suspect walked into the gas station, pulled out a gun and demanded money from the clerk. The suspect then took the cash and fled eastbound driving a black Dodge Ram.
Police say the suspect is known to park his getaway vehicle away from the store. The clerk told police he saw the suspect park a black Dodge Ram in the cul-de-sac by the store, walk up, point a gun, demand cash and then take off in the truck.
A description of the suspect -- about 35 years old, standing 6 feet 2 inches tall, heavy set, wearing a black jacket and black pants -- and his getaway car were broadcast to police.
"Fortunately this time a witness did see the vehicle, which was key," said Rorrison.
"Additional property, along with a loaded handgun, was on the front seat," said Lt. Paul Rorrison.
Police believe the clerk played a crucial role in catching the thief. He spotted the vehicle and described it to officers.
Officers say the suspected robber hit seven stores in Kearny Mesa, Lakeside, Rancho Penasquitos, Lakeside and on Adams Avenue on the crime spree, which started around 7:45 p.m. Tuesday and ended at 2 a.m. Wednesday.
The suspect was questioned by robbery detectives and faces eight counts of armed robbery.