(Portland, OR)  --  Police are looking for a man accused of following women into elevators and threatening sexual assault.  The man has allegedly followed at least two women into elevators downtown, first in the 500 block of Southwest 5th Avenue and then in the Smart Park on 10th Avenue and Southwest Morrison Street.  The first woman was able to force him out of the elevator after he threatened her, and the second woman says he let her go when another person saw what was happening.  He's described as six-foot-two-inches and 250 pounds with a muscular build and prominent chiseled jawline.