Barnett, 58, faced one count of second-degree arson, three counts of involuntary manslaughter and five counts of reckless endangerment. The charges stemmed from a fire at a vacant rowhome at 205 S. Stricker St. shortly before 11:30 p.m. on Jan. 23, 2022. The building collapsed, killing Lt. Paul Butrim, Lt. Kelsey Sadler and Firefighter Kenny Lacayo and seriously injuring a fourth firefighter. Three other firefighters and residents of neighboring homes were cited in the reckless-endangerment counts.

The jury first reported a deadlock Friday. The judge instructed jurors to continue deliberating, but on Tuesday they sent another note saying they had reviewed the evidence and remained split.

Before the case went to the jury, the judge dismissed three second-degree murder counts, ruling that prosecutors had not presented sufficient evidence to support convictions for depraved-heart murder. The judge allowed the arson, manslaughter and reckless-endangerment charges to remain for the jury’s consideration.

Prosecutors argued that surveillance footage showed Barnett entering the rear of the vacant home at 11:23 p.m. and that four flashes of flame appeared during his eight-minute stay. They also cited analysis by the Bureau of Alcohol, Tobacco, Firearms and Explosives, and said Barnett acknowledged being at the scene.

The defense disputed that the person shown in the video was Barnett and challenged the government’s evidence. Attorneys pointed to differences between Barnett’s blue-and-brown coat and the blue-and-yellow coat they said appeared in the footage, and argued the testing and interpretation of the video did not prove he set the fire.

The fatal fire drew scrutiny to the dangers of responding to fires in vacant buildings, where structural instability can put firefighters and nearby residents at risk. With the jury unable to reach a verdict on the remaining charges, the criminal case has not been resolved.