(Portland, OR)  --  Police are offering a reward for information on a suspect accused of starting a four-alarm fire that destroyed a home and a business in northeast Portland.  Crime Stoppers of Oregon is offering a reward of up to 25-hundred dollars for information that leads to an arrest.  Police say the fire on August 26th at Northeast 85th Avenue and Northeast Siskiyou Street was intentionally set.  The blaze caused damage to multiple homes, businesses and parked cars in the area.