This incident involves the alleged murder of 40-year-old Mike Jonas at Finnegan Park in Brockton, Massachusetts, in September 2025, and the subsequent arrests and charges against Michael Thompson and his girlfriend, Dayana Slade.
Key facts of the case
- On the afternoon of Sept. 23, 2025, police responded to reports of multiple people shot at Finnegan Park near Crescent Street and Montello Street in Brockton, about 20 miles south of Boston.
- Two victims were found with gunshot wounds; one person survived with non-life-threatening injuries, while Jonas suffered four gunshot wounds and multiple stab wounds and was pronounced dead.
- Investigators say an altercation in the park immediately preceded the shooting, and surveillance footage showed 35-year-old Michael Thompson leaving the area in a black Nissan Rogue with two women.
Alleged motive and events
- Prosecutors allege that Thompson and his 25-year-old girlfriend, Dayana Slade, were at the park when Slade told Thompson that Jonas had disrespected her and that she wanted him to “do something about it.”
- Slade allegedly remained in the Nissan while Thompson went back to confront Jonas, leading to a physical altercation involving at least four people, after which witnesses reported hearing multiple gunshots.
- Prosecutors say Thompson returned to the car distressed, possibly crying, covered in blood, got into the passenger seat, and told Slade to drive.
Flight and arrest
- Authorities identified Thompson as the suspected shooter, and local police later located and seized the black Nissan Rogue as part of the homicide investigation.
- The pair allegedly left the vehicle at Slade’s mother’s home, leaving what prosecutors described as an “arsenal” of firearms and other weapons inside, then disposed of their cellphones and left Massachusetts.
- With help from the U.S. Marshals Service and local agencies, Thompson and Slade were located and arrested in Lewiston, Maine, after months as fugitives.
Charges and court status
- Michael Thompson is charged with one count of first-degree murder in the killing of Mike Jonas.
- Dayana Slade is charged as an accessory after the fact in connection with Jonas’s death.
- Thompson is being held without bond; Slade’s bond has been set at 250,000 dollars, and both have pleaded not guilty.
- They are scheduled to appear in court for a probable cause hearing on Feb. 26.
