By Rob McAllister

STOCKTON (CBS13) – A security guard at a Stockton apartment complex shot and killed a man Sunday to protect himself and residents, he says. But some residents say they’re not even sure if they want the hired protection.

“It’s devastating. I thought this was a nice neighborhood and everything was OK,” said Forestine Dixon, who lives in the complex.

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Nerves are still rattled at the normally quiet apartment complex after a fight broke out between the complex’s security guard and a couple who allegedly refused to leave.

“During this struggle the security guard lost his baton and one of the suspects actually picked it up and held it up,” Stockton Police Department spokesperson Ofc. Joe Silva.

Police say the 26-year-old guard then warned one of the suspects, 52-year-old Mark Rego, to drop the baton several times.

“The suspect did not, and fearing for his life, the security guard shot the suspect,” said Ofc. Silva.

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Mark was taken to the hospital where he was pronounced dead.

The second suspect, Gustava Rego, was arrested on battery charges.

Dixon says she likes knowing a security guard is in the apartment complex; however, as a grandmother, she’s still nervous about a guard carrying a gun.

“It concerns me very much,” she said.

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The case will now be sent to the DA’s office to determine if the security guard will face any charges.