Lincoln Police Capt. Jim Davidsaver says David Mueller, of Lincoln, died at 2 p.m. Sunday.
It’s unclear what caused Mueller’s head injury. Davidsaver says an autopsy is scheduled for Monday.
A passer-by spotted Mueller on a sidewalk near 14th and Benton streets around 3:30 a.m. on June 29. Mueller’s cellphone and wallet were missing, but Davidsaver says it’s not certain that Mueller was robbed.
Doctors told police they believe Mueller’s injuries were more severe than what would have resulted from a fall.