Portland police said Sunday that Ernest Lee Dean is accused of a string of Oregon robberies in Gresham, Hood River, Cannon Beach, Albany, Newport and one in Woodland, Wash.
Dean is set to be arraigned Monday in Multnomah County on robbery charges.
The investigation began last September, when the Silver Cloud Inn in Portland was robbed. Another motel robbery happened the next day in Wilsonville.
Police say the robbery suspect wielded a handgun and said he had a bomb.
Dean was arrested in North Portland on Friday.
Portland police investigated with several agencies, including the Federal Bureau of Investigation and police in Cannon Beach, Newport, Albany, Hood River, Gresham and Lake Oswego.
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