CHICAGO (CBS) — A man just out of prison was charged Monday in the beating and fatal stabbing of a 12-year-old girl in the Sheridan Park neighborhood Sunday night.

Alexis Stubbs lived with her mother near Beacon Street and Wilson Avenue. Police said John Singleton, 31, got inside their apartment around 10 p.m. Sunday, and a fight broke out. The girl was stabbed and suffered blunt trauma during a domestic dispute, according to police.

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Witnesses saw a man leaving the scene with a hammer, and possibly a knife.

The girl was rushed to the emergency room at Advocate Illinois Masonic Medical Center, where she was pronounced dead at 10:46 p.m.

Police had been searching for Singleton for about six hours, until a detective found him hiding in a port-a-potty at a nearby construction site.

“Detectives have been monitoring his phone, and his phone was pinging not too far from here, and they got out of their car. They started searching on foot. So I give credit to detectives for going to a construction site where it was pinging at, and that’s where they found this individual over there hiding,” crisis responder Andrew Holmes said.

Holmes said what happened to the girl was particularly reprehensible.

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“To me, the little girl was tortured, and she suffered, so we’re going to try to help that family, but at the same time, we’ve got to see what led up to this; because, see, even if you’re in a domestic [dispute], you shouldn’t take it out on the children. Just simply walk away,” he said.

John Singleton

“I just never got a good vibe from him,” neighbor Reginald Taylor said.

Taylor has known Alexis since she was 3 years old, so he was trying to maintain his composure; focusing not on how she died, but how she lived.

“It’s real hard, real hard,” he said. “She was a sweet girl, you know, and no kids deserve anything like that, but to see the damage, and the blood … she just didn’t deserve to go out like that.”

It was not immediately clear what triggered the attack, but Holmes said the boyfriend did not live in the home, and the girl’s mother was not there at the time.

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At this time police are not identifying the suspect, but sources said they expect he will be charged sometime Monday evening.