A motorcyclist died on the 91 freeway after possibly hitting the back of a semi-truck caring nitrogen refrigerated liquid. (liquid nitrogen) The truck driver stopped along with other drivers who saw the rider in lanes. Compton FD pronounced the victim DOA on the freeway and covered the body. CHP is investigating the crash and speaking with witnesses to confirm if the victim was struck by any vehicles and if they stopped. All eastbound lanes are closed and traffic is being diverted off at Long Beach Blvd.