CLEVELAND -- Prosecutors say three women held captive in a run-down Cleveland home kept diaries documenting the physical and sexual abuse they suffered daily for a decade.

They say the women's kidnapper lured one of them into his home with the promise of a puppy and locked all of them in a vehicle in his garage for three days when someone visited him. They say he claims he didn't have an exit strategy from his complicated double life and finally gave the women a chance to escape by leaving a door unlocked.

One woman broke free in May and called police to rescue them.

Former school bus driver Ariel Castro has pleaded guilty to 937 counts, including kidnapping, rape, assault and aggravated murder. He's being sentenced Thursday.

Cuyahoga County prosecutor Tim McGinty says in a sentencing memorandum filed Wednesday that Castro "remains remorseless."