John Armstrong, a 52-year-old White male, was found fatally shot just after noon on April 9, 2024, inside an apartment at 1109 G Street near 11th and G in downtown Lincoln. Officers were dispatched on a report of a shooting and discovered him with a gunshot wound to the head; he was pronounced dead at the scene. Authorities publicly identified him the following day as a Lincoln resident. An online memorial later noted that he was lost to gun violence on that date, and funeral-home records listed him as Jonathan William ï Johnï Armstrong III, born in Lincoln in 1971.
Investigators interviewed a man at the apartment who told dispatchers he had shot someone. Following that interview, police arrested 53-year-old Jacob Mulloy of Lincoln. He was booked into the Lancaster County Jail on counts of second-degree murder and use of a firearm to commit a felony. Officers recovered a handgun at the scene as evidence. Police updates and local coverage did not indicate additional suspects, and no broader threat to the public was reported.
In the days that followed, the case was treated as a homicide, and officials continued processing the apartment and collecting statements. Publicly available notices focused on the single arrest and the formal identification of the victim, while obituaries and memorial postings marked his death without announcing public services. No further arrests connected to the shooting were reported in official releases or the contemporaneous press.
