DES MOINES, Iowa (AP) — The family of a man killed by a Polk County sheriff’s deputy two years ago alleges in a federal lawsuit that the office is “covering up” the killing by refusing to release footage and records. The Des Moines Register reports that the family of Isaiah Hayes, of Ashland, Wisconsin, filed the lawsuit on June 30 in the U.S. District Court for the Southern District of Iowa.

It says the county has refused to release body camera or dash camera footage which shows the shooting of the 25-year-old Hayes in 2018. The lawsuit alleges the county is withholding the video because it would show Deputy Ryan Phillips “shooting Isaiah in the back while Isaiah did not pose a threat.”