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KEIZER, Ore -- A reward of up to $500 has been offered for information that helps authorities find a 54-year-old Keizer man who disappeared a month ago.

Robert Allen Knupp was reported missing June 8 after his car was found at a rest area off Interstate 5 south of Salem. He was last seen the day before in Albany.

The reward has been offered by his employer, Garten Services Inc.

Knupp is 5-foot-11, 215 pounds. He has salt and pepper hair and a short beard. He was last known to be wearing a blue Hawaiian-style shirt with khaki pants, white socks and brown leather shoes.

Anyone with information is asked to contact Oregon State Police.

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