Two arrests have been made for the murder of Cecil Brown. I got this from a Takoma Park police department release:
On August 4, 2014, at approximately 12:29 pm, Takoma Park Police received two phone calls for a disturbance in the 800 block of Colby Avenue, Takoma Park, Maryland. Units responded and located a male, identified as Cecil Brown, 73, deceased in his backyard. Takoma Park Police Detectives began an investigation into Brown’s death as a homicide; this was based on the Medical Examiner’s determination that the cause of death was blunt force trauma and the manner of death a homicide.
After an exhaustive investigation, on May 28, 2015, at approximately 4:00 pm, Hussain Ali Zadeh, 49, and Larlane L. Brown, 68, both of Takoma Park, Maryland, were arrested for 1st Degree Murder and Conspiracy to Commit 1st Degree Murder, by Takoma Park’s Special Assignment Team. Both suspects were arrested at Baltimore Washington International Airport. With the assistance of the Baltimore Customs and Border Protection Unit, Zadeh was detained at customs after returning from out of the country and remanded to the custody of the Takoma Park Police. Brown was also taken into custody at the airport after it was determined that she would be there to pick Zadeh up.
Both suspects are currently being held at the Montgomery County Central Processing Unit on a no bond status.
No info on whether Larlane Brown is related in some way. It's a very common name, so they could easily NOT be related.