(Portland, OR) -- TriMet has issued a lifetime exclusion to Koryn Kraemer for a brutal attack on an elderly man at a MAX station. Kraemer is accused of bitting off the man's ear and part of his face until bones were showing. Kraemer remains in jail. This is TriMet's second lifetime exclusion. Previously, prolific sex offender Jared Walter, also known as the TriMet Barber, was the first person banned for life. TriMet also issued a five year ban to Brianna Workman for pushing a child onto MAX tracks. And, Dustin Rasmussen is excluded for five years after hitting a Transit Security Officer with handlebars that were removed from a bike.