Ex-Cop Confesses to Massive Cover-Up in Katrina Shootings Michael Lohman cops to conspiracy over shooting of 6 By Rob Quinn, Newser Staff Posted Feb 25, 2010 2:38 AM CST Updated Feb 25, 2010 5:23 AM CST 18 comments Comments US Attorney Jim Letten speaks to reporters yesterday after former New Orleans Police Department lieutenant Michael Lohman pleaded guilty to conspiring with fellow officers to obstruct justice. (AP Photo/Cheryl Gerber) (Newser) – A former New Orleans police supervisor has confessed to helping cover up for officers who shot six unarmed people, killing two, in the chaotic aftermath of Hurricane Katrina. Michael Lohman pleaded guilty to conspiring to obstruct justice yesterday and admitted helping craft fake police reports, plotting to plant a gun near the scene, and lying to investigators, the New Orleans Times-Picayune reports. The officers, responding to a report of gunfire, shot and killed a mentally disabled man and opened fire on a separate group of people who were crossing a bridge in search of food. Lohman realized it was a "bad shoot" and began concocting a cover-up as soon as he arrived on the scene, according to court documents. Lawyers from some of the six police officers and one former officer involved in the shooting say Lohman's guilty plea doesn't change their clients' position that they are innocent of wrongdoing.