The Oakland-based artist, also known as Ronald Brooks, was questioned along with more than two dozen people who police say witnessed the shooting, which happened after a release party for the singer’s latest album, Talkin’ Dirty.

Blackburn, 31, of nearby San Leandro, was shot twice outside the Glas Kat Club in the south-of-Market nightclub district. “We had 25 witnesses,” SFPD homicide Lt. Judie Pursell said.

“He (Money B), along with other people, were identified as possible witnesses. They were brought in for questioning and released, and no one has been arrested. People were still being questioned the afternoon of April 21 and the investigation was continuing, an SFPD spokeswoman told POLLSTAR.

Police said Blackburn was seen beating Money B’s car as he tried to leave the area, according Oakland’s KTVU television. Shots were reportedly fired from within the car.

Other press reports claimed several fights broke out in the crowd that gathered outside the nightclub where the release party was held. Police used Mace to control the crowd.

Money B is also an actor, producer, TV host and record company owner.