Minerva Hernandez-Lopez, a 44-year-old Hispanic/Latina woman, was killed on August 17, 2026, after what investigators described as a road-rage confrontation on Milwaukee’s south side. The shooting unfolded near South 10th Street and West Lapham Boulevard during the afternoon as Hernandez-Lopez and another driver, later identified by prosecutors as Mariah Ruiz, became involved in an increasingly hostile encounter while traveling through the neighborhood.
Authorities determined that Hernandez-Lopez’s death was a homicide caused by a gunshot wound.
According to the criminal complaint, Ruiz was driving with a 16-year-old passenger and was headed toward El Rey Supermarket when she allegedly cut off Hernandez-Lopez’s vehicle. The passenger told investigators that Hernandez-Lopez later pulled alongside Ruiz and criticized her driving, telling her, “Little girl, you need to drive.” Prosecutors allege Ruiz responded angrily, threatened to call immigration authorities on Hernandez-Lopez and displayed a handgun. Hernandez-Lopez reportedly continued following Ruiz and began recording the confrontation on her cellphone because she believed Ruiz should not have been carrying or displaying the weapon. The passenger told police he became concerned Ruiz might fire and at one point pulled her hand downward in an effort to prevent her from shooting.
The confrontation continued for several blocks. Investigators said the vehicles followed one another before Hernandez-Lopez stopped on West Lapham Boulevard and backed her GMC into the front of Ruiz’s vehicle. Surveillance footage reviewed by police showed the vehicles stopping close together and allegedly captured Ruiz extending an object from the driver’s side of her vehicle toward Hernandez-Lopez. Gunshots could then be heard. Hernandez-Lopez attempted to drive away and made a U-turn, but investigators allege Ruiz continued after her and fired additional rounds. The teenage passenger later told detectives that he saw Hernandez-Lopez’s head slump and immediately feared she had been struck.
Police responded to the intersection at approximately 2:37 p.m. and found Hernandez-Lopez on the ground outside the driver’s side of her vehicle. Officers and other people at the scene attempted lifesaving measures, but she died there. Witnesses described hearing several shots and rushing to help after Hernandez-Lopez emerged from her vehicle badly wounded. Investigators recovered five. 40-caliber cartridge casings and two bullet fragments from the area. Her GMC had multiple bullet strikes in the rear tailgate, a shattered rear window and blood inside near the steering wheel. An autopsy found that a single bullet entered through her left shoulder, exited near the base of her neck, reentered her neck and exited again on the opposite side.
Ruiz did not remain unidentified for long. She later arrived at Milwaukee Police District 2 accompanied by family members and friends and surrendered. Investigators searched the vehicle with consent and recovered a. 40-caliber Glock Model 23 handgun from the passenger area. Police reported that ballistic testing was consistent with that firearm having discharged the cartridge casings recovered from the shooting scene. Additional matching casings were reportedly recovered from Ruiz’s vehicle.
During questioning, Ruiz acknowledged firing the shots, according to the criminal complaint. She told detectives that the confrontation began with a traffic and honking dispute, that Hernandez-Lopez had spoken to her in Spanish and made an obscene gesture, and that Ruiz responded by threatening to call immigration authorities. Ruiz said she had been having a bad day after arguing with her mother and claimed she had not intended to hurt Hernandez-Lopez and did not know why she fired. Investigators said Ruiz also acknowledged that her teenage passenger had urged her not to shoot. She later wrote an apology letter to Hernandez-Lopez’s family.
Milwaukee County prosecutors charged Ruiz with first-degree reckless homicide while using a dangerous weapon. At her initial court proceedings, probable cause was found to continue the case and a $100,000 cash bond was imposed. The charge carries a potential sentence of as much as 65 years if she is convicted. Published reports listed a preliminary hearing for August 28, 2026; available reporting located through August 29 did not establish that a trial or conviction had yet occurred, leaving the prosecution against Ruiz pending as the criminal case moved through Milwaukee County Circuit Court.
