(Clackamas, OR) -- Clackamas County Sheriff's deputies are asking for the public's help to identify the thief who stole a 40-thousand-dollar necklace from a store at Clackamas Town Center last month. They say around mid-afternoon on August 13th, the suspect grabbed the gold and diamond necklace from a display at Joe Kassab [[ kuh-SOB ]] Jewelers and bolted from the store. He escaped in a blue SUV with its license plate covered. The suspect is a tall African American man, with close-cropped hair, a beard, and a large lightning bolt tattoo starting on the back of the neck and wrapping around to the front. If you know anything about him, contact sheriff's detectives.