San Jose police have arrested 32-year-old Davit Martinez, suspected in a series of unprovoked attacks that left multiple victims injured over the past two months. Martinez was taken into custody after allegedly assaulting a family member and brandishing a machete at a home in the 600 block of Gittle Court. The first incident occurred at a gym on February 23, when Martinez allegedly approached an elderly man without provocation and continued striking him until the victim lost consciousness. All three attacks have been linked to Martinez. Police believe there may be more victims.