Telephone records introduced at Robert DeRosario's murder trial indicate that, on the day a 12-year-old boy disappeared on Walnut Street in Yonkers, the defendant made 10 calls to a teenager who claims that the teen had suggested a fantasy to DeRosario about having sex with a young boy and killing him.

DeRosario is accused of kidnapping and killing the missing boy, Orlandito Rosario-Maldonado of Yonkers, whose body was discovered Jan. 23, 1999, along the Saw Mill River Parkway. He died from blunt-force trauma to the head and strangulation.

DeRosario is serving a 10-year prison sentence for engaging in sexual activity with the Hastings boy and 11 other teenage boys he met in his neighborhood or on the Internet. That case was developed while police were investigating him in connection with the homicide. He faces up to an additional 25 years to life if convicted in Orlandito's death, for which he is charged with second-degree murder and first-degree kidnapping.
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