Richard Dyson, 57, pleaded guilty earlier this year to the murder of Donnella Bryan, 62, who was reported missing and later found in a Hechinger Mall dumpster in Northeast DC.
On Friday, federal authorities announced that Dyson has been sentenced to 24 years in prison.
Bryan was last seen around 12 p.m. on April 17 in the 300 block of N Street NE, according to the Metropolitan Police Department. She was then the subject of a critical missing person alert issued the following day…