A judge Friday sentenced two teenage boys to life in prison for the torture-slaying of a 12-year-old boy the judge said went through "untold agony."

Joe McDonald, 15, and David Burns, 16, appeared impassive when Common Pleas Judge Robert Brown sentenced them in the Feb. 8 killing of Antonio Cooley, who was sprayed with insecticide, forced to drink lighter fluid and suffocated with a plastic bag."I cannot escape recalling the details of the event, the untold agony that was caused," Brown told the defendants, who stood trial as adults.

In addition to life terms for aggravated murder, McDonald and Burns were each given consecutive terms of 10 to 25 years for aggravated robbery, 10 to 25 years for aggravated burglary, and four to 10 years for child endangerment. They will not be eligible for parole for about 40 years.

McDonald's lawyer, Russell Carter, said the case represented apparently the first time in Ohio that a 15-year-old has been convicted as an adult of aggravated murder.

Assistant County Prosecutor Mathias Heck said he was satisfied the sentence showed "that no matter what the age a person is that commits these kind of actions, they're going to be dealt with severely."

"These two defendents have been very callous and it's almost as if they're proud of what they did," he said.

Prosecutors said McDonald and Burns planned with three 13-year-olds to enter the Cooley apartment, kill Antonio and take his property, including a video game and a video cassette recorder.