beloved east bay artist seles howell has been killed and oakland police are on the lookout for the hit-and-run driver. cornell bernard is live in berkeley with the story. >> reporter: celeste howell's family cannot believe she is gone. they're demanding justice tonight. she was a well-known artist who showcased her jewelry at this gallery. >> the biggest heart anyone on the planet. >> reporter: brian mason is grieving the loss of his partner, celeste howell, killed saturday afternoon by a hit-and-run driver. >> just couldn't get out of the way in time and -- yeah. i'm devastated. >> reporter: howell was walking down pine street in west oakland when the police say the driver of small car may have lost controlled, jumped the sidewalk and killed her instantly. the driver left the car and ran away. >> i can't imagine why someone would do this and leave her. >> her sister sheryl william came frock albuquerque when she heard the news. she says celeste was a practicing buddhist. >> her belief is you don't cause harm to anyone else, you go through life and do not cause harm to anyone else. >> reporter