DENVER (KDVR) — A reward has increased to $12,000 for information on a February double-homicide and arson investigation in Thornton. On Wednesday, Feb. 26, at around 11:15 p.m., 58-year-old Kendra Anderson and 55-year-old Chad Anderson were found dead inside their home in the 16300 block of Columbine Street. The neighborhood is between East 160th Avenue and York Street. Both victims had died from apparent gunshot wounds, according to Thornton police.