Police have released the identity of a Lincoln man killed in an explosion in the basement of his home.

The State Fire Marshal's Office says 67-year-old Robert Stuart of Stanhope Drive died in in the basement of his home at around 7:45 Wednesday night. Investigators found five IEDs in the basement and exploded them in Stuart's backyard, along with other bomb making material. Public Safety spokesman Steve McCausland says Stuart's wife, Sarah, was home at the time and later told investigators that her husband had been making the devices to blow up tree stumps. His body has been taken to the State Medical Examiner's Office in Augusta for an autopsy.

Investigators have contacted the FBI and the Federal Bureau of Alcohol, Tobacco, and Firearms to assist in the investigation by tracking down where and when he bought the bomb-making materials. In addition to Fire Marshal's and State Police, the Lincoln Police and Fire departments responded. Investigators cleared the scene at about 2:30 this morning.