BOONE, Iowa (AP) — An Iowa police chief testified Tuesday that a man accused of killing his former roommate in 2009 admitted to the crime during an interview. The second trial of 55-year-old John Green began with opening statements from attorneys and testimony from Sac City Police Chief John Thompsen. Green is charged with first-degree murder in 58-year-old Mark Koster’s death in Sac City.

Green’s first trial was held in Webster County because his attorney argued that pretrial publicity would make it impossible for Green to receive a fair trial in Sac City. The same argument was used against holding the second trial in Fort Dodge. The first ended in a mistrial. Koster was declared missing in 2010. His remains were found in the basement of his home in 2012.