Family and friends are asking for help from anyone who has information on the whereabouts of Lawrence Dinkins Jr.  Dinkins, a poet who performed during Sunday's In the Flow jazz festival, was last seen on 17th and Broadway Sunday evening wearing a "Tuskegee Airmen" shirt, dark pants and a cap.   His abandoned car was found nearby, unlocked with windows rolled down and several of his possessions inside but family and friends have been unable to contact or locate him. The Sacramento Police Department is also looking for him but no further information is currently available.  A picture of Dinkins is attached and if anyone has any information, please contact the Sacramento Police Depart