DANVILLE (CBS SF) — Police in the East Bay are searching for a suspect in the Sunday afternoon shooting death of a 76-year-old man near the Iron Horse Regional Trail in Danville.

Police identified the suspect Monday afternoon as 51-year-old Mark Allan Sypien, who is being sought in connection with the shooting death of Danville resident John Moore around 2:25 p.m. Sunday in the parking lot at 3470 Fostoria Way.

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An arrest warrant on suspicion of murder has been issued for Sypien, police Chief Allan Shields said in a news release. Sypien is described as a white man who is 5 feet 9 and 185 pounds, with gray hair and green eyes. His last known address is in the Dublin area.

Sypien was last seen driving a 2003 silver Ford Escape with Illinois license plate 1008122.

Shields has requested the help of Alameda County Sheriff’s detectives, and said their top investigators have been assigned to the high profile case.

“Right now, we don’t believe that there is anyone else in danger,” said Shields. “We had information that we believe someone else was in danger, we would certainly let the public know.”

Moore owned the cluster of industrial buildings at the end of Fostoria Way, including a five-story medical office tower. He actually lived just a short distance away from the crime scene.

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Moore was also an active member of the Danville Rotary Club for more than 30 years, and was always quick to lend a hand with a smile.

The Moore family did not respond to a request for comment, but the police chief spoke highly of him.

“John’s a great guy. John did a lot to invest in the community,” said Shield. “He’s a businessman. Is a Rotarian, and generously donated his own personal time for the benefit of others.”

The shooting is the first homicide in Danville in three years.

Police ask anyone who sees Sypien to contact police immediately. Anyone with information about his whereabouts or related to the case is asked to contact Danville police at (925) 314-3702 or via Nixle by texting “TipDanPD” with your tip to 888777.


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