police say there is no evidence to suggest he was involved in the 1992 murder. jenna: quite a discovery in florida, two skulls buried in a backyard and they date back to ancient peru. julie you have more on this. reporter: yeah, a bit bizarre. a plumber work on a swimming pool in florida will never forget this workday after finding fragments of human bones including two skulls he called police, and well believe it or not that s when the story gets even stranger. forensic experts believe the skulls belong to an adult male and a boy about ten years old. they believe the skulls are believed to be hundreds of years old and from south america. the tissue on the bone tprag events had been mu mummifying, with material from the ancient i nca empire. there was newspaper that dates back to 1978. investigators have a couple of near reese on how the bones may