MADISON, Wis. -- Four television and newspaper media organizations filed a lawsuit on Tuesday against Dane County, the city of Madison and Madison Police Department as part of an effort to obtain open records information concerning the county's 911 system and the investigation into a University of Wisconsin-Madison student's death.

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WISC-TV, Wisconsin State Journal, Milwaukee Journal Sentinel and WTMJ-TV in Milwaukee filed the suit to ensure local officials comply with several open records requests regarding the Dane County 911 Center and the ongoing controversy after a dispatcher was accused of mishandling a call from the cell phone of 21-year-old Brittany Zimmermann, who was killed in early April.

The suit was filed against the Dane County Public Safety Communications Center and its director, Joe Norwick; Dane County and County Executive spokesman Joshua Wescott; the Madison Police Department and Capt. Carl Gloede of the department's Records and Technology section; and the city of Madison and Madison Mayor Dave Cieslewicz's spokesman George Twigg.

The suit urges a judge to compel local officials to comply with the requests for information regarding the 911 center as well as the ongoing investigation into Zimmermann's death.

Reporters for the outlets have requested to inspect and copy the audio files of any 911 calls from Zimmermann's home, an un-redacted report of the 911 center's investigation into the alleged Zimmermann call and all documents related to the Zimmermann call and the investigation into the incident produced from the Public Safety Communications Center, Madison police and the mayor's office.

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