MADISON, Wis. -- The former fiance of homicide victim Brittany Zimmermann is now fighting the release of his call to 911 after he found her in her campus-area apartment last spring

TALKBACK: What Do You Think?

A Milwaukee law firm on Thursday asked a Dane County judge to temporarily suspend his order Wednesday that Dane County release Jordan Gonnering's 911 call, other unrelated 911 calls around that time and an unredacted copy of the county's investigative report into how Zimmermann's own alleged phone call to 911 was handled by the county's 911 center.

A lawyer for Gonnering faxed a letter to Judge Richard Niess on Thursday asking him to prevent the release of Gonnering's 911 call until his party has a chance to argue against it at a hearing.

It's not clear if or when such a hearing would be held, WISC-TV reported.

Other media outlets, including WISC-TV, filed a lawsuit against the county for records related to the homicide and 911 center, including the release of Zimmermann's phone call to 911 sometime before her death. The judge will rule on that phone call later this month after hearing arguments against its release by the Madison Police Department and District Attorney Brian Blanchard. The judge scheduled a hearing on that issue for next week.

The 911 call has been the source of public controversy for months. A warrant made public last week said the call that lasted 57 seconds contains the sounds of screaming and a struggle.

Dane County 911 center officials said the operator couldn't hear those sounds, didn't call back the number as required and didn't send any officers to investigate. No officers were dispatched to the area where the cell phone call originated until 48 minutes later, after Gonnering found the woman dead.

Gonnering's 911 call on April 2 came about 50 minutes after Zimmermann, a 21-year-old University of Wisconsin-Madison student from Marshfield, apparently called 911 for help on her cell phone but no one was sent. He said he found her unconscious with chest wounds and dialed 911.

Police were then sent to their West Doty Street apartment. Zimmermann died of stab wounds but documents said that she was also beaten and strangled.

Zimmermann's family made an appearance in court on Wednesday to oppose the release of her 911 call.

Stay tuned to WISC-TV and Channel 3000 for continuing coverage.