The murder case that shocked Hollywood is almost closed. Publicist Ronni Chasen was shot and killed last month while driving home from a Hollywood premiere--and after several weeks of investigating, Beverly Hills police say Chasen was killed after a robbery went bad. TMZ reports that a man who shot himself last week when police approached is indeed the man who killed Chasen.

Police say Harold Smith used the same gun to kill himself that he used to shoot Chasen in November. They believe he approached Chasen while on a bicycle in an attempt to rob her. Contrary to previous theories, they believe there is no link to road rage.

"We don't believe it was a professional hit," police Chief David Snowden told reporters, according to PEOPLE.

A big break in the case came from a tip through 'American's Most Wanted,' TMZ reports. The tipster, who wishes to remain anonymous, is set to collect $125,000 in reward money.