Police are waiting for information from DNA evidence and a raised fingerprint found on the roof of the Hemet-San Jacinto Valley Gang Task Force office where a natural gas line was rerouted and left open on New Year's Eve.

The office on St. John Place filled with natural gas overnight. Gang detectives arrived the next day and smelled the gas before entering.

Police called it an assassination plot with the intent to kill any officers who would enter the building. Police said the gas could have been ignited from a spark with a light switch or static electricity on the carpet.

No arrests have been made and no suspects have been publicly identified.

Earlier this month, the Hemet City Council approved a new, undisclosed location for the gang task force, Hemet Police Chief Richard Dana said.

The former building is owned by the city and was converted from a printing press six years ago. The site will be sold and was deemed safe, Dana said.

In the weeks prior to the attack, gang detectives were conducting high profile sweeps to identify gang members in the San Jacinto Valley, Margis said.

Hemet police received no threats prior to the attack. About two weeks earlier, two San Jacinto gang members were arrested, accused of firing at police and striking a Hemet police car.

Police have not zeroed in on a particular gang. On Dec. 29, a Vagos motorcycle gang funeral was held at a church next door, but police reported no problems. The gang has not been linked as suspects.