Horrell attacked the Goldensteins less than 48 hours after he was released from a state prison. He was to go to trial on Monday, but pleaded guilty to murder and attempted murder charges late Friday. His sentencing hearing is set for January 2014.
Horrell, who lived in Bradley, was paroled from Dixon Correctional Center on October 10 after serving three years of an eight-year term for burglary. The attack at the Goldenstein's home took place on October 12.
Doctor Goldenstein was a well-known member of the Kankakee community. He moved there in 1962. He was 81 when he was murdered.