(Portland, OR)  --  Officials say a 60-year-old woman who was injured in a hit-and-run crash in Portland has died.  Marlene Popps died from injuries she suffered in the crash, which happened while she was walking at the intersection of Southeast 60th Avenue and Holgate Boulevard.  Police say Popps may have been hit by a motorcycle or a three-wheeled bike.  The suspect was last seen heading west on Holgate Boulevard.