Execution date set for Clark County killer

A date of Oct. 15 has been set for the execution of death-row inmate William Castillo.

Castillo, 35, was convicted in 1996 in Clark County for the murder of retired school teacher Isabelle Berndt. Berndt, 86, was beaten to death in her home by Castillo with a tire iron. The motive for the killing was robbery.

Castillo set the home on fire to destroy evidence, but later admitted the murder to a co-worker and confessed to police. He was convicted of first-degree murder with use of a deadly weapon and sentenced to death. He was also convicted of arson, burglary and robbery.