SAN BERNARDINO ( — A second person has been arrested in connection with the murder of a marijuana dispensary security guard, police said Monday.

Tomeise Ray, 23, was arrested Friday on suspicion of murdering Anthony Pineda, of Rowland Heights, during a robbery at a dispensary in the 2800 block of West Rialto Avenue on Feb. 16, San Bernardino police Lt. Rich Lawhead said.

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Witnesses told police that they heard shots fired during the robbery just before closing time. Pineda, who was found in a back room, had been able to wound one of the suspects before he died, police said.

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Police made their first arrest in the case in April. Curtis Jackson, 21, is being held on $1.25 million bail for robbery and murder charges and is scheduled to make his next court appearance Friday.

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Ray, who is being held on $1 million bail, is scheduled to appear in court Tuesday.