Elderly prisoner claims he's America's deadliest serial killer with 90 victims. Police believe him.Samuel Little was convicted in Los Angeles of the cold-case murders of three women between 1987 and 1989. DNA evidence linked Little — also known as Samuel McDowell — to the slayings. He was given three life sentences, the Los Angeles Times reported at the time."If all of these are confirmed, I mean, he'll be the most prolific serial killer, with confirmed killings, in American history," Bland said.https://www.chicagotribune.com/news/...120-story.htmlNow hobbled by poor health and confined to a wheelchair, Little was once a towering 6-foot-3, tipping the scales at more than 200 pounds