An Alaska woman pleaded guilty to killing her "best friend" after a man she met online said he would pay her $9 million if she sent him photos and videos of her committing murder. Denali Brehmer, 22, pleaded guilty Wednesday to first-degree murder in the June 2019 death of Cynthia Hoffman, the Alaska Department of Law said. Hoffman, 19, died from a gunshot wound to the back of the head. Her body was dumped in the Eklutna River, about 27 miles northeast of Anchorage, court documents state. The Anchorage District Attorney’s Office previously said that Brehmer, who was 18 at...