(Portland, OR) -- Portland Police are identifying a suspect accused of stabbing a man to death on an eastbound MAX train. Officers arrested 51-year-old Shondel Larkin at the 82nd Avenue Transit Station Friday evening. They found the victim on the platform but there's no word yet what led up to the attack. TriMet calls it "horrific" and a "senseless act of violence," saying they've handed over security video.