Sayeed Neilson, a 14-year-old boy with Asperger's, died at the home where he lived with his half-brother and mother, who have long criminal histories.

Tracey Neilson’s brutal slaying has haunted investigators in Oklahoma for nearly four decades. But the search for the truth — and ultimately, closure for those the Oklahoma State University ...

It's been more than 34 years since Tracey Neilson was found stabbed to death. But two crucial pieces of evidence could literally hold the key to solving the crime.

University of Oklahoma student Tracey Neilson was found stabbed to death on her 21st birthday on Jan. 5, 1981. Despite combing through close to 1,500 leads, ...

Donald Neilson died after spending much of his life in prison for the murders of four people, three men and a teenage girl, which he committed in a two-year killing spree in the 1970s.