Marco Alvarado / Photo from Chicago Police
Marco Alvarado has been charged with murder in the April beating death of Jacob Klepacz in the Lincoln Park neighborhood, police said.
Police responding to a 911 call about a battery found Klepacz, 32, with head trauma in the 1500 block of West Fullerton Avenue about 4 a.m. April 28, authorities said.
Klepacz, of the 1200 block of North Noble Street, died at Advocate Illinois Masonic Medical Center about a half hour later, according to the Cook County medical examiner’s office.
An autopsy was initially inconclusive, but the medical examiner’s office has since determined Klepacz died of blunt head trauma from an assault and his death was ruled a homicide. Alcohol intoxication was listed as a contributing factor.
The initial inconclusive autopsy result sparked a movement on social media that pushed for a homicide ruling. 
Jacob Klepacz / Photo from Facebook
Authorities said Alvarado, 21, of the 2400 block of South Spaulding Avenue, was positively identified as the person who beat Klepacz during a robbery.
Alvarado was charged with two counts of first-degree murder and one count of robbery, police said.
-- Sun-Times Media Wire