San José police say a violent April 25 attack inside a city residence has now led to the arrest of 27-year-old Stevenson Tuimavave, who was taken into custody last Wednesday on a gang-related assault with a deadly weapon charge. Investigators allege Tuimavave was part of a group involved in the home attack that left the victim with significant facial injuries after one suspect struck him with the handle of a firearm.
Investigation and arrest
According to the San José Police Department, detectives with the Gang Investigations Unit obtained an arrest warrant for Tuimavave and a search warrant for his associated residence, then served both last Wednesday. During the warrant service, detectives reported finding two firearms, multiple rounds of ammunition, gang indicia, and various illegal fireworks, and they arrested Tuimavave that same day. He was booked into the Santa Clara County Main Jail on case number 26-115-0728.
Attack described
Police say the assault unfolded on April 25 when a group of male suspects attacked an adult man at his home. "The preliminary investigation revealed the attack to be gang related," the San José Police Department stated, and investigators report that one suspect struck the victim in the face with the handle of a firearm, causing significant injuries, according to San José Police Media Relations.
SJPD Arrests Suspect for Gang-Related Assault with a Firearmhttps://t.co/A6txp9wrQR pic.twitter.com/Pv5oF2SpvB
— San José Police Media Relations (@SJPD_PIO) July 20, 2026
Evidence and next steps
Tuimavave was booked into the Santa Clara County Main Jail at 150 West Hedding Street in downtown San José, according to county custody information. The case is expected to be reviewed by prosecutors and may be handled by the Santa Clara County District Attorney’s Gang Prosecution Unit, which prosecutes gang-related felony offenses. Anyone with information is asked to contact Detective Minkel #5003 or Detective Garcia #5026 of the SJPD Gang Investigations Unit at 408-277-3835 or via the department's email addresses listed in its release, as detailed by the San José Police Department.
Legal implications
Because investigators have described the attack as gang-related, prosecutors could seek a gang enhancement under California Penal Code section 186.22, which authorizes additional penalties when a felony is committed for the benefit of a criminal street gang. That statute can add substantial prison time to the underlying offense if the enhancement is proved at trial, per California Penal Code §186.22.
Local enforcement context
The arrest follows a series of recent operations by SJPD’s Gang Investigations Unit that have produced multiple warrants and weapons seizures this summer. The department has publicly outlined similar coordinated warrant services and arrests in several recent press releases, the San José Police Department said.
