In a brief arraignment before DC Superior Court Judge Jason Park on Jan. 9, Walter Parker, 49, pleaded not guilty to murder in a brutal beating.
Parker, 49, is charged with first-degree murder for his alleged involvement in killing 77-year-old Bernard Williams on the 400 block of M Street, SE, on April 23.
Parker earlier rejected a plea offer to accept a count of second-degree murder. In exchange, the prosecution would not file other charges and agree to a guideline sentence of 12-to-24 years…