Inset: Miguel Ocasio (Milwaukee County Jail). Background: The area in Wisconsin where Ocasio killed his father (Google Maps).
A 29-year-old man in Wisconsin is headed to prison for fatally shooting his father during an argument in front of a witness who was both the shooter's ex-girlfriend and the victim's stepdaughter.
Milwaukee County Circuit Judge Michelle Ackerman Havas sentenced Miguel Ocasio to six years in a state correctional facility followed by three years of supervised release after the defendant pleaded guilty to one count of second-degree reckless homicide in the slaying of Miguel Arocho, court records show.
The court credited Ocasio with 344 days of time already served.
As Law&Crime previously reported, Milwaukee police officers responded at about 7:45 p.m. on Nov. 13, 2025, to a residence in the 1900 block of South 16th Street. First responders said they found an adult male, later identified as Arocho, suffering from a gunshot wound to the head. He was pronounced dead at the scene.
A female witness told police that Arocho had previously been married to her mother, making the victim her stepfather. She said she and her children were living with Arocho when he was shot. The witness also identified Ocasio as the shooter, her ex-boyfriend and Arocho's biological son.
The witness said she had gone to Walmart earlier in the day with a male friend who then drove her home to Arocho's house. When they got to the home, Ocasio arrived and tried to yank open her car door before accusing her of being in a romantic relationship with the male friend. The witness said she got out of the car to protect her friend because she knew that "her ex carries a gun."
"Her friend then left and she tried entering the apartment, but her ex kept arguing with her," the affidavit states. "They were standing near the side door and her ex pushed her in the face with his hand. Her ex continued arguing with her, and that is when her stepdad, [Arocho], came down. Once her stepdad came down, she, her ex, and [Arocho] were standing in the gangway and her ex and [Arocho] were arguing."
The witness said she "attempted to calm the situation," but Ocasio pulled a gun.
"She then tried to push [Ocasio] away, and she was able to push him to the sidewalk in front of the apartment," police wrote. "At that point, her ex fired two gunshots, but she does not believe those gunshots hit anyone. After those gunshots, [Arocho] ran inside, but immediately exited. When he came out, she did not see anything in her stepdad's hands. At that point, she was either pushed or fell to the ground, and she then heard two gunshots. She got up and saw that her stepdad had been shot."
After the shooting, the witness said Ocasio fled on foot. Police picked him up the following day.
In an interview with police, Ocasio admitted to shooting his father. He claimed he was talking to his ex-girlfriend when his father came outside and "threatened him with a firearm," adding that "he, Ocasio, is not going to let anyone harm him."
Ocasio claimed he attempted to walk away when his father interrupted his "conversation" with his ex-girlfriend, but said he was "scared" when his father "threatened to shoot him," so he fired a "warning shot."
Ocasio explained that he met his ex-girlfriend, the witness, when Arocho married her mother.
"He only fired one warning shot because he believed his father was getting his gun," police wrote. "When his father came outside, his father was going to reach and he, Ocasio, then fired because he had been threatened and he was scared. When asked if he saw anything in his father's hands, he said that he did not see anything. He fired two shots at his father, and he did not check on his father because he was scared and he just ran away."
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