Shrine in the unit block of M Street NE DC (Jamar Morris)

I found this shrine in the unit block of M Street NE, Washington DC. I believe it may be in memory of Jamar Harris, who was shot to death nearby a little over a year earlier.

From a DC police report: Detectives from the Metropolitan Police Department’s Homicide Branch are investigating a fatal shooting that occurred in the unit block of M Street NW, Washington DC.
On Tuesday, February 9, 2016, at approximately 8:39 pm members of the First District responded to a call for the sounds of gunshots.  Upon arrival, members located an adult male victim unconscious and suffering from a gunshot wound.  DC Fire and Emergency Medical Services transported the victim to a local hospital for treatment where all lifesaving efforts failed. The decedent has been identified as Jamar Morris, 28, of Northwest, DC.

The guitar and snare drum are unusual representations.

May he rest in peace.