the number of murders being linked to samuel little his stackable to staggering. more from los angeles. >> to the water. it's the only one -- >> confessing to 1 of 93 murders over 35 year period in 19722005. 50 of the murders verified by the fbi and agents say they believe all of his confessions. the videotapes of which paint a chilling portrait of the most prolific serial killer in american history. >> [inaudible] >> seen her leaving a texas court last november targeted vulnerable women. sometimes or drug addicts, usually strangling them.