JUNE 2, 1990 – HOMICIDE
SUSPECT ARRESTED BY COLD CASE DETAIL
On June 2, 1990, Tucson Police Department homicide detectives began an investigation into the death of Tucson resident Kenneth Geiger, 37. Mr. Geiger had checked into the Lazy 8 Motel on E. Benson Highway just before noon on June 1st. At 2:00 p.m. on the 2nd, motel employees found Mr. Geiger dead in his motel room. A subsequent autopsy ruled the death as a homicide.
Initial attempts to identify a suspect and solve this murder were unsuccessful, however the case has remained open. In January of 2007 this case was assigned to the Cold Case Detail, which is comprised of investigators from the Pima County Attorney’s Office and Tucson Police Department. Subsequent investigation revealed forensic evidence that linked former Tucsonan Thomas Trosper, 53, to the crime scene.
Earlier this month, Mr. Trosper was located in Brooksville, Florida by Tucson Police Department Cold Case detectives. The detectives traveled to Florida, and with the assistance of Brooksville Police Department detectives, they located and interviewed Mr. Trosper. Evidence gathered throughout the homicide investigation, combined with statements made to the detectives by Mr. Trosper resulted in the issuance of an arrest warrant for First-Degree Murder against Mr. Trosper for the death of Kenneth Geiger. During the early morning hours of March 26th, deputies from the Hernando County Sheriff’s Department arrested Mr. Trosper in Hernando County, Florida. Mr. Trosper is currently being held in the Hernando County Jail and is awaiting extradition proceedings.