When Jordan Gonnering found his girlfriend, Brittany Zimmermann, at their apartment on April 2, she was cold and lifeless, and he thought she had been shot in the chest, according to long-sealed search warrants obtained today by the Wisconsin State Journal.

One of the six search warrants unsealed in Dane County Circuit Court also described a 911 call made from Zimmermann's cell phone less than an hour before Gonnering found Zimmermann unconscious on the floor of their apartment on West Doty Street.

The Dane County 911 Center has been under fire for months because an operator mishandled the call, and police were not sent for another 40 minutes. Zimmermann was stabbed, the records show.

The search warrants and sworn affidavits disclose for the first time the exact length of the time lost by the 911 center mistake. They also inlcude a police detective's chilling account of what could be heard on the call.

The warrants, most of them filed in April with one in June, have been sealed and re-sealed by judges at the request of police and Dane County prosecutors. The latest seal on all of the warrants, however, expired last week and no request was made to extend the seals.

The warrants detail portions of the police investigation of Zimmermann's death, including their investigation of several people — and gathering of DNA samples from those men — thought to have been suspects. One of the warrants notes that DNA was found on Zimmermann's body that did not belong to her.

The 911 call from Zimmermann's phone came at 12:20 p.m., the search warrants state. At 1:08 p.m., Gonnering called 911 to report finding Zimmermann. Police were at the scene at 1:15 p.m.

Investigators also took 23 swabs for DNA and 10 fingerprints. They also took nine partial footwear prints from the apartment and two sink traps and their contents.

Gonnering told police that he didn't immediately have time to notice whether anything was missing from the apartment, but said their computers were still there. Among the valuables in the inventory of items taken by police were also a backpack, a purse, a digital camera, an Ipod and a diamond ring.

For a full report, including excerpts from the unsealed records, check back at www.madison.com/wsj and read tomorrow's State Journal.