Friends of murdered publicist Ronni Chasen say they’re concerned about the police investigation into the crime, noting that there are too many unanswered questions for them to be convinced the crime is solved, reports the Los Angeles Times’ Harriet Ryan and Andrew Blankstein.

"It’s ridiculous, just ridiculous. It doesn’t add up and I haven’t talked to anyone who thinks it does," said Kathie Berlin, a friend of Chasen’s for four decades and a publicist. Police say that ballistic evidence links Harold Martin Smith to the gun that killed Chasen, and department spokesman Lt. Tony Lee on Friday called the investigation’s findings "very plausible and very real."

Nevertheless, many people, from Chasen’s friends to neighborhood residents, say they don’t believe that a small-time criminal on a bike was solely responsible for the crime. One reason for the skepticism seems to be that Smith had told people he would be getting a windfall of $10,000. "So who was paying him that $10,000 if he acted alone?" Berlin said. Lee declined to comment on specifics of the case, although police have described the killing as a robbery gone wrong.