Off-duty MPD officer facing homicide charge in Joel Acevedo's death bound over for trial

MILWAUKEE - The Milwaukee police officer accused of killing Joel Acevedo in his home in April appeared virtually for his preliminary hearing Monday, Aug. 31. The court found probable cause after an hour of testimony and bound Michael Mattioli over for trial, according to court records.

Mattioli, 32, a 13-year veteran of the Milwaukee Police Department, has been placed on full suspension. Nearly two months after taking control of the investigation, the Milwaukee Fire and Police Commission announced July 10 disciplinary charges against Mattioli, including the potential violation of the code of conduct as it relates to "integrity, respect and violation" of Milwaukee police standard operating procedure, with a referral for a disciplinary trial.

His arraignment is scheduled for September 8 at 8:30 a.m.

A charge of first-degree reckless homicide was filed May 13 against Mattioli following a fight inside Mattioli's home near 45th Street and Cleveland Avenue on April 19. Prosecutors said Mattioli indicated he "held (Acevedo) on the ground" after Acevedo tried stealing from him and punched another man in the home. It happened the morning after the off-duty officer hosted a get-together at his home.

Acevedo, 25, died from his injuries at Aurora St. Luke's Medical Center on April 25.

According to the criminal complaint, police were dispatched to the area of 45th and Cleveland around 7:30 a.m. on April 19 after a caller indicated that a man at that location had attacked two people.

The complaint said the first arriving officer's body camera captured a man on the sidewalk outside the home. The officer asked, "Where's Joel?" The man replied, "He's subdued right now. They've got him in there."

The body camera video showed Mattioli straddling Acevedo inside the home -- with Acevedo on his stomach. A second man was lying on Acevedo's legs. The complaint said there was no visible struggle -- and Acevedo did not appear to be moving or speaking. When asked if Acevedo was breathing, prosecutors said Mattioli replied, "I don't know." The officer said it appeared Mattioli had Acevedo "in a rear-naked chokehold."

The officer said to Mattioli, "I'm making sure you don't have your arm around his neck," to which Mattioli replied, "Oh, yeah," before pulling his right arm out from under Acevedo's neck area, the complaint said. Acevedo was not breathing and did not have a pulse. Chest compressions were initiated, and paramedics arrived.

Another officer's body camera captured Mattioli identifying himself as a police officer outside the home. According to the complaint, he explained that he knew Acevedo through Acevedo's work as a security guard, and while in a squad, Mattioli said:

"I have nothing to hide. I was just going to sleep. I held him on the ground in my kitchen for quite a while before the police showed up. I told him to get out of my house. Once he started punching my friend, I held him on the ground. We called 911. I know it's ridiculous. I'm sorry."

The complaint said Mattioli added:

"I held him down on the ground and I started to call, I called 911 first, but then, I handed the phone to (another man) and told him to continue to call, and I held Joel down, but I didn't, I had him around his neck, but I didn't squeeze as hard as I could because I know, I'm not stupid. I know what it is, you know? I know what's deadly force and what's not, but I held him there to make sure he didn't get away until the, you guys showed up. Look, I wasn't holding him to make his air cut off, you know? I'm not stupid."

Prosecutors said he indicated "he held Joel down because Joel had punched his friend, Chris."

An investigator with the Milwaukee County District Attorney's Office spoke with Mattioli to tell him investigators wanted to obtain a blood sample "since alcohol was involved." During that conversation, the complaint said Mattioli asked, "Is this (expletive) dead?" The investigator said no, and Mattioli asked, "What the (expletive) is this all about?" The investigator said, "Listen, he's not in good shape." Mattioli replied, "Well, (expletive) him. He stole from me. I don't give a (expletive) what shape he is in. Was he in good shape before all this happened? No."

The complaint said in a statement to the investigator, Mattioli said he "had some friends over" the night of April 18 and they had a fire in the backyard and drank. He said he went to bed, and "woke up to Joel literally going through the pockets of the pants he was wearing." When he confronted Acevedo, he said, "Joel said that he was not stealing." Mattioli said he told Joel to get out of his house, and Joel walked downstairs. Mattioli said one of the people who had been sleeping downstairs then came upstairs and, "Suddenly, Joel punched (the man)." Mattioli said, "Joel fell to the ground, and he (Mattioli) got on top of (Joel) and called 911," adding that he "didn't suffocate the guy. I had my arms around him, yes, and I held him there, but I didn't suffocate the guy. I didn't press hard enough." Mattioli also said "if he wanted to choke the guy, he would have, but he didn't" -- holding him there until police arrived.

The complaint noted Mattioli was advised that in regard to use of force, officers are trained "to try to avoid chokeholds and things like that." Mattioli said, "Trained technique, it's not a trained technique."

A voice believed to be Acevedo's was heard in the 911 call placed on the morning of April 19, the complaint said, saying, "Let me go home," and, "I swear I'll go home. I swear."

Prosecutors said during that call, Mattioli was heard saying, "(Expletive) you, (expletive)" during "a struggle." Two other men were heard in the call -- one saying, "What the (expletive) is going on," and the other (Chris -- the man Mattioli said Acevedo punched) telling the dispatcher, "A man is attacking us," identifying him as "Joel." The complaint said Mattioli was heard in the call saying, "(Expletive) lay down...all right? You (expletive) -- you (expletive) did this, okay?" The other man in the room said, "We got him, Michael, don't worry." Mattioli then said, "Yeah, (expletive), you're an (expletive). You were my friend."

Acevedo was in critical condition on a ventilator at the hospital until he died on April 25. His death was ruled a homicide as a result of anoxic encephalopathy due to traumatic asphyxia (brain injury due to traumatic strangulation).

Defense attorney Michael F. Hart said Mattioli will argue self-defense.