Derek Christian Ferree was 26 when he was shot and killed on the evening of Saturday, November 23, 2013, in the 500 block of West Mason Avenue in York, Pennsylvania. Authorities say the shooting was part of a drug deal that turned violent and also left 23-year-old Braydon Aldinger dead at the scene.

Court documents allege Ferree and Aldinger had conspired with a third person, Arianna Tavares, to rob a heroin dealer. Investigators identified two primary suspects: Dejerek Basil Smallwood, 21, who was arrested in York on December 12, 2013 and charged with criminal homicide, and Laquan Anderson Pierrelouis, 22, known as Q, who was later located and arrested in New York City on March 27, 2014 after reportedly using a false name and identification. Tavares was charged with conspiracy to deliver heroin for her alleged role in the events that led to the killings.

Are there any witnesses or local residents who remember activity around West Mason Avenue that night or who knew Derek Ferree?