San Jose Police today announced the arrest of a 13-year-old for murder in the Valentine’s Day stabbing of 15-year-old David Gutierrez, at Santana Row.

Police also arrested three 16-year-olds and Emanuel Sanchez-Damian,18, of Campbell, and charged each of them with felony assault of Gutierrez. Police said the attackers did not know their victim and that the apparently random killing was gang-related.

San José Police patrol officers had responded at about 7:15pm on Feb. 14 to a report of a fight involving multiple people in the 300 Block of Santana Row.

While enroute, the caller reported that someone had been stabbed. Upon arrival,  the officers discovered a 15-year-old male victim suffering from at least one stab wound and immediately began life-saving measures. The victim was transported to a local hospital where he ultimately succumbed to his injuries.

The suspects fled the scene prior to police arrival.

Homicide detectives learned the attack was gang motivated, adding that Gutierrez had no gang affiliation or involvement. Detectives were able to identify the primary suspects.

Last Thursday, Feb. 20, Special Operations officers located and arrested the four juveniles, including the 13-year-old who is alleged to have carried out the fatal stabbing. The three 16-year-old juveniles were booked into Santa Clara County Juvenile Hall for felony assault. The 13-year-old was booked into Santa Clara County Juvenile Hall for murder and felony assault.

The next day, officers arrested Sanchez-Damian, who was subsequently booked into the Santa Clara County Jail for felony assault.

The fatal stabbing was the city's third homicide of 2025.