The events leading to an arrest in the began to unfold shortly after 2 p.m. Friday, when one of her Rasputin Music co-workers entered Gillihan's house and found her in a bedroom. The friend immediately called 911.
After emergency medical responders saw the 26-year-old's body in her Military East townhouse, they called police. Officers determined that it was a possible crime scene and locked down the home to preserve evidence.
Detectives sought to identify Gillihan's family, friends and associates. "When we get names we try to verify who they are through various databases we have access to," said Benicia Police Lt. Mike Daley.
He said evidence developed at the scene began to point to , Gillihan's boyfriend. When police learned that he was a parolee, they asked for assistance from a California Parole Apprehension Team.
"We received information between 3 and 4 p.m. last Friday that Adam Disa may have been involved in a crime," said Fred Bridgewater, North Bay District administrator for the Department of Adult Parole Operations. "We dispatched some (Parole Apprehension Team) agents, participated in a briefing at the Police Department, then started an active search."
The agents began contacting family members and friends and developed a number of leads.
"During the short, intense investigation we came upon some information that was helpful and we contacted the Benicia Police Department," said Bridgewater. "From that information, we were able to locate Disa at the Taco Bell in Benicia."
Citing a parole violation, agents placed Disa under arrest in the parking lot of the Taco Bell about 10:15 p.m. Friday and called Benicia police, who were waiting nearby. The agents turned Disa over to police. The arrest came about eight hours after authorities were first notified by Gillihan's co-worker.
It was during his interview with Benicia police, authorities say, that Disa made statements tying him to the death of Gillihan.
The investigation is ongoing. "We're still looking at various aspects of the case to try to determine what may have caused this unfortunate event to happen," Daley said.