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LONGMONT - A man who shot three people before turning the gun on himselfin a rural area northwest of Denver early Tuesday morning had just beenreleased from jail, police documents prove.

Police documents revealed Daniel Sanchez, 31, had just posted bond after a domestic-violence incident. According to Longmont Police, Sanchez was arrested and taken to Boulder County Jail for domestic violence and kidnapping charges. He posted a $10,000 bond at the jail and was released by Boulder County.

Police say Sanchez and his ex-girlfriend were in a physical fight on Saturday, Dec. 15, where she sustained minor injuries. Allegedly, the fight was over their recent break up and both of them having new significant others. Sanchez turned himself in to police on Dec. 16. He was later released.

A 911 operator received a call at about 4 a.m. Tuesday from a woman who blurted out the address of a home in the 400-space LongView mobile home park, investigators say.

"The dispatcher heard 'No, no, no,' and then gunshots," Sgt. Tim Schwartz with the Weld County Sheriff's Office said. "A male party picks up the phone and says he's going to kill himself. The dispatcher hears another gunshot."

9NEWS has listened to a recording of the 911 tape. We are not airing the recording at this time.

Deputies raced to the trailer home where they found two men and two women dead inside, one of which was Sanchez.

The gunshots woke neighbor Manuel Nunez, 58, who ran into the living room to see what had happened. Nunez's home backs onto an open lot across the street from the cream-colored mobile home where the shooting happened.

"I heard pop, pop, pop," Nunez said. "I looked out the window but I didn't see nothing."
Schwartz says investigators are still seeking a motive and the identities of the other victims.

"It's heartbreaking," Schwartz said. "It's just tough all the way around."

Trevor Hughes with the Fort Collins Coloradoan contributed to this report.