A Wisconsin teenager has been found guilty of killing his uncle following a dispute over a potential sleepover, as determined by a jury. The incident revolved around Ronnie Fuentez, who was charged with felony murder caused by battery in the death of his 46-year-old uncle, Adam Thompson. According to Waukesha County court records accessed by Law&Crime, Fuentez also faced charges of misdemeanor bail jumping.

The tragic event unfolded on February 1, 2025, when Fuentez, then 17, and Thompson were at their shared residence on Delafield Street in Waukesha, a city near Milwaukee. They had been cohabiting for approximately four years, as detailed in the criminal complaint.

The conflict began around 10 p.m. with an argument between the nephew and uncle over Fuentez’s desire to have a friend stay the night. Thompson opposed the idea, telling Fuentez that his friend “could not stay,” which reportedly angered the teenager. Thompson insisted that the guest leave, prompting Fuentez to retaliate by punching him in the head with a closed fist.

Thompson defended himself by returning a punch but soon raised his arms to protect his head as Fuentez continued his assault, hurling insults and expressing long-held animosity towards his uncle.

After the altercation, Fuentez left the premises and only returned the following morning. The whereabouts of the friend during this confrontation remain unclear.

Fuentez left the home and didn’t come back until the next morning. It is unclear where the friend was during the incident.

Thompson did not call the police, nor did he feel any “immediate injuries,” but two days later, “he developed a migraine in the afternoon.” He said he took over-the-counter medication, which helped, but the migraine persisted, and on Feb. 5, 2025, he called his mother, authorities recounted.

“While talking on the phone, [Thompson] began to struggle with speaking in complete sentences,” the court document said. The victim’s mother thought he was having a stroke and drove over to his home “to make sure he was ok.” She then drove him to Waukesha Memorial Hospital, where nurses told Thompson “he had an internal brain bleed.”

He was placed in the intensive care unit.

Thompson was “able to speak,” but he was “unable to form complete sentences and struggled to find his words due to internal bleeding in his brain,” the complaint said. Still, he told authorities at the hospital what happened, and a Waukesha police officer responded, learning that Fuentez had “punched him multiple times in the head area.”

As Law&Crime previously reported, Fuentez was originally charged with battery — but that charge was later upgraded to murder when Thompson died on Feb. 17, 2025. It also appeared that Fuentez’s attack on his uncle took place while he was out on bond after being released for an unrelated crime the previous September.

Thompson’s obituary says he was “an avid gamer, a reptile enthusiast, having many reptiles in his home, loved his dog ‘Boy’ and most of all loved his family enjoying every family gathering.”

Fuentez is scheduled to be sentenced on April 27.