02/24/2011 11:31 am ET Updated May 25, 2011

David Viens, Person Of Interest In Wife's Disappearance, Attempts Suicide Off Cliff

LOMITA, Calif. (KTLA) -- The husband of a Lomita woman missing for 16 months attempted suicide Wednesday by jumping off a cliff in Rancho Palos Verdes.

It happened in the 31500 block of Palos Verdes Drive West, according to sheriff's homicide detectives.

Lomita Station deputies were patrolling the area when they observed an altercation between man and a woman, identified as 47-year-old David Viens and his girlfriend, Kathy Galvin, sheriff's Lt. Dave Coleman said.

The deputies thought it might be a domestic violence incident, and ordered Viens and Galvin to stop.

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