Victim: Delvin Mendoza-Chaparro, killed by his three friends after a night of getting high, accused of stealing a bong 

According to a criminal complaint Sarah Zakzesky confessed that she and the Katzfey brothers, took turns beating Mendoza-Chaparro for stealing from them, and then dumped his body into a nearby alley, where he was discovered by police on Dec. 19.
He was left with only a Marquette University hoodie to keep him warm — his jeans were pulled down around his ankles and he was found without shoes or socks. It was 14 degrees the night the victim was left outside to die.

Brendan Katzfey [picture] along with his older brother Devin and Sarah Zakzesky took turns beating and humiliating Mendoza-Chaparro. He is charged with first-degree murder and held on $100,000 bond

In the time leading up to his death Mendoza-Chaparro’s attackers took his phone and shared his final hours with his followers on Snapchat. The videos in addition to interviews with the three suspects have allowed police to piece together what happened the night Mendoza-Chaparro was humiliated and left for dead.
Cops believe one of Katzfeys, uploaded three videos to the victim’s Snapchat account after the beating.
Investigators say the videos show a close-up of the victim’s face with a voice saying “don’t ever come and steal.” The next videos show Katzfey speaking into the camera while kicking the victim, who is lying on the ground.
While the victim denied the stealing accusations, Devin Katzfey proceeded to drag him into the kitchen by his feet. He begged his attackers to stop, but they continued to beat him until he was unconscious, landing about 25 punches and kicks before going on to beat him even more for their Snapchat recordings.
Zakzesky told police she saw Katzfey punch and kick the victim in the face and head about 25 times. She admitted to participating even after hearing the victim begging them to stop, according to her, the beating lasted 10-15 minutes.
Brendan Katzfey admitted to investigators he “urinated on [Mendoza-Chaparro] while he lay near a kitty box,” and his brother “forced [the victim] to eat cat litter and feces from the litter box.”
The first clip starts with a close-up of Mendoza-Chaparro motionless and bloody on the ground, severely injured.
In the second Snapchat video, a voice later identified as Devin Katzfey can be heard saying, “This is what happens when you steal … You got knocked the f–k out, b—h. Don’t ever come and steal.”
Mendoza-Chaparro was literally battered unconscious: “It was horrible,” said Mr his mother, Iris Chaparro.
“They showed me his photo and I couldn’t even go to the morgue to identify him.”

The trio were getting high in Sarah Zakzesky’s [picture] apt with  Mendoza-Chaparro. The fatal beating happened in her kitchen. She has been charged with first-degree murder same as the brothers and held on $50,000 bond

Zakzesky told police the group were smokin marijuana at her apartment when the younger Katzfey brother Brendan, accused Mendoza-Chaparro of attempting to steal a bong and pipe and his brother Devin claimed the victim attempted to steal his phone.
In the final clip, the victim can be seen again on the ground, this time by a box of cat litter on the kitchen floor — Mendozza-Chopra tries to lift himself up, but he’s immediately kicked back down by one of his assailants.
The criminal complaint states that Zakzesky, allegedly, “kept telling Devin Katzfey that they need to take the victim to the hospital but he said no”.  Shortly after, she demanded the victim be removed from her apartment.t
They drove him to the alley where “the victim then fell over in a snow bank by some garbage cans,” the complaint says.
Zakzesky “further agreed that it was cold enough that someone could freeze to death … She then left the victim there.”