Autopsy: NYC boy was given drugs, then smothered

Levi Aron is arraigned in Brooklyn criminal court Thursday, July 14, 2011, in New York. Aron, 35, is charged with luring 8-year-old Leiby Kletzky to his home on Monday, and then smothering him and chopping him up when he learned that a search was under way for the missing child. Detectives found the boy's feet in Aron's freezer. (AP Photo/Louis Lanzano, Pool)

NEW YORK (AP) — The medical examiner says an 8-year-old New York City boy who was abducted off a street in a Jewish neighborhood in Brooklyn, killed and dismembered last week was given a combination of drugs before he was smothered.

Police say Leiby Kletzky got lost leaving day camp and asked the suspect for help before he was killed last week.

Levi Aron has pleaded not guilty to charges of murder and kidnapping.

The cause of death was intoxication from a muscle relaxant, an anti-psychotic drug and two pain medications, followed by smothering.

Police say video cameras captured their fateful encounter while Leiby's mother waited anxiously just a few blocks away. Detectives later found the boy's severed feet, wrapped in plastic, in Aron's freezer, as well as a cutting board and three bloody carving knives.