Christopher J. Alexander, 26, was killed on the evening of May 31, 2018, when gunfire erupted in the 2100 block of North 5th Street near 5th and Forrest Streets in Harrisburg, Pennsylvania. Officers who responded found him lying on the sidewalk with fatal gunshot wounds; early reports placed the shooting at about 7:45 p.m. Authorities initially warned the suspect was armed and dangerous and asked the public for help.

Dauphin County Crime Stoppers offered a reward of up to $2,000 for information leading to an arrest. His obituary gives his full name as Christopher J. Alexander, born September 4, 1991, and lists funeral arrangements and surviving family including his mother, stepmother, and brothers. The investigation led police to Stevenson Mack; on June 25, 2018, Harrisburg Police arrested Mack, then 25, and charged him with first-degree murder and person not to possess a firearm.

Was anyone in the neighborhood that evening able to see or hear something that could help clarify what happened?