Porter Ranch Man With Alzheimer’s Goes Missing While Walking Dog; Search Underway

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Police were conducting a search for a 72-year-old man with Alzheimer's who was reported missing after he went on a walk with his dog and failed to return to his Porter Ranch home, authorities said Sunday.

Set Chau was last seen leaving his residence at 9 a.m. on Saturday with his dog, according to Sgt. Matt Vannatter with the Los Angeles Police Department. His wife reported him missing around 7:30 p.m.

Chau's dog--described as a tan-colored Jindo-- has also not been located.

Mark Mester reports for the KTLA 5 Morning News on Nov. 17, 2014.