The district attorney in San Mateo has no plans to file criminal charges against a man involved in the stabbing of another man at a self-storage facility in San Mateo, Calif.

Justin Lockwood, 33, of Pacifica, was stabbed to death June 7 outside All-American Self Storage on East Third Avenue and Detroit Drive.

According to police, Lockwood had a confrontation with another man. Police have not released his name. The only witness told police the man was defending himself against Lockwood. Prosecutors have no evidence that contradicts this account. The weapon found at the scene belongs to Lockwood. Police will continue to investigate the stabbing.

The three people were at All-American Self Storage because at least one of them rented a storage unit, police said.

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