Zakariya Ibrahim Issa, 20, was shot and killed on July 31, 2015, in Seattle’s New Holly neighborhood while walking home after a friend’s funeral. He was on the phone with his mother when she heard gunshots and the call went dead. Medics arrived but could not save him.

Witnesses said a BMW pulled up, a man exited, punched Issa to the ground, and then shot him multiple times in the head in what was described as a broad-daylight execution. Police investigators treated the killing as the result of a dispute between Issa and a former friend over alleged theft and money; Issa reportedly believed the friend had burglarized his home. Seattle homicide detectives, crime-scene investigators and the Gang Unit handled the case.

Within weeks, arrests were made. The primary suspect, 20-year-old Mohamed Abas Omar, was arrested and charged with first-degree murder; investigators say he fled to Minneapolis by bus after the shooting and later returned, and that his mother helped arrange a meeting with detectives that led to his arrest. A 19-year-old man believed to have driven the BMW was also arrested. Does anyone have information about Issa, his movements that day, or the people involved?