CLEVELAND, Ohio -- A retired Cleveland police officer pleaded guilty Wednesday to attempted rape and 24 counts related to his collection of child pornography.

Robert Bonness, 53, of Parma, will be sentenced March 4 by Cuyahoga County Common Pleas Judge Peter Corrigan.

Bonness responded to an advertisement posted on the craigslist website for a father and daughter interested in a special person.

For two months, he communicated with an undercover detective he thought was the father of a 12-year-old girl and arranged to meet them Oct. 28 in North Olmsted to have sex with the girl, Assistant County Prosecutor Frankie Goldberg said.

Police found condoms, lubricant and sex toys in his car when he arrived. His home computer was confiscated and revealed hundreds of videos and photographs of child pornography.

Bonness, being held on a $500,000 bond, was a patrolman for 23 years.

Now he's a sexual predator who will have to register his home and work addresses with a sheriff's office every 90 days for life.