Brockton Men Held Without Bail in GPS-Linked Murder of Teen, 18

Two Brockton men are being held without bail after a Plymouth County grand jury indicted them on murder charges in the March shooting death of 18-year-old Mikel Semedo, with prosecutors saying GPS ankle monitors the pair wore for unrelated prior offenses helped tie them to the scene. Keith A. Resende, 38, and Jorge E. DaVeiga, 30, were both arraigned in Brockton District Court and have pleaded not guilty.

The shooting happened on March 22, 2026, at 39 Clinton Street, where officers found Semedo suffering from gunshot wounds before he was transported to a hospital and pronounced dead, according to The Enterprise. Semedo, an 18-year-old Brockton resident, was later laid to rest at Calvary Cemetery on April 1 following services at Russell & Pica Funeral Home, according to an Echovita obituary. Hoodline first reported on the police and state trooper response to the fatal shooting in a earlier Clinton Street report the day after it happened.

Gunshot Detection System Alerted Police Before 911 Calls

The Brockton Police Department's ShotSpotter system detected gunfire at the scene shortly before 7:30 p.m., per the same Enterprise account. Brockton has used the acoustic gunshot-detection technology since 2009, with sensors mounted on streetlights and buildings that triangulate the sound of gunfire and automatically alert dispatchers, according to the Atlas of Surveillance. The technology remains a subject of debate statewide — 13 Massachusetts municipalities operated ShotSpotter systems as of 2024, but cities including Cambridge voted in May 2026 to end their contracts over cost and accuracy concerns, per Northeastern University.

Investigators say GPS coordinates from the ankle monitors both men wore for prior offenses tracked the flight path of two suspect vehicles linked to Resende and DaVeiga, placing the pair together and at the shooting scene both before and after the gunfire, the Enterprise reported. A search warrant also turned up ballistic evidence in Resende's vehicle that investigators say was consistent with evidence recovered at the scene.

Prior Road Rage Arrest Surfaces in Resende's Record

Resende was previously arrested in April 2021 by federal and state law enforcement following a February 2021 road rage incident on Route 138 in Canton, in which he allegedly rammed another vehicle, prompting an occupant to fire six gunshots at his car, according to Boston 25 News. He was apprehended in Worcester by U.S. Marshals and state police in that earlier case, the station reported.

A Plymouth County grand jury indicted DaVeiga on April 3, 2026, on a lesser charge of accessory after the fact before the murder charge followed; he was arraigned in Brockton District Court on that count and later charged with murder as well. Under Massachusetts General Laws Chapter 274, Section 4, a conviction for accessory after the fact carries up to seven years in state prison, up to two and a half years in a house of correction, or a fine of up to $1,000, according to the Massachusetts Legislature. DaVeiga is scheduled to be arraigned on that accessory count in Brockton Superior Court on October 7.

Life Sentence Looms Over Murder Charges

Both men face far steeper exposure on the murder counts. Under Massachusetts General Laws Chapter 265, Section 1, a first-degree murder conviction carries a mandatory sentence of life imprisonment without parole for adult defendants, per state law cited by Mass.gov. A judge ordered Resende and DaVeiga held without bail. The two men are due back in Brockton District Court on October 29 for a probable cause hearing. Defense attorneys for both men could not be reached for comment, and the Plymouth County District Attorney's Office did not respond to multiple requests for comment, according to the Enterprise's reporting.

Part of a Deadly March in Brockton

The Clinton Street killing was one of several fatal violent incidents the Plymouth County District Attorney's Office recorded in Brockton during March 2026. Days earlier, three people were charged in a fatal stabbing near Spring Street, a case Hoodline covered in a separate Spring Street stabbing case from the same weekend. That same month, a ShotSpotter-detected shooting on Commercial Street near a transit terminal killed a 17-year-old after 14 rounds were fired, leading to murder charges against an 18-year-old suspect, according to the Plymouth County District Attorney's Office. Gunfire also erupted on Vine Street in June, a case Hoodline detailed in a report that referenced the earlier Clinton Street shooting.

Despite the cluster of fatal shootings, District Attorney Timothy J. Cruz told the Brockton City Council that overall violent crime rates in the city have declined alongside historic lows in regional incarceration rates, according to the same district attorney's office. Cruz's office has also highlighted $22.9 million in grant funding secured for local community safety investments, according to its own materials. Massachusetts law enforcement agencies have increasingly relied on GPS electronic monitoring data as circumstantial evidence in violent crime cases, tracking vehicle speed and real-time coordinates to place suspects at crime scenes and map their movements afterward, per legal analysis from Benzaken, Sheehan & Wood, LLP.