The 48-year-old woman and 1-year-old boy were stabbed in a home on Viewmont Avenue, just outside San Jose city limits. Another 3-year-old girl was found with multiple stab wounds, was taken to the hospital and is in stable condition.
Earlier on Wednesday, deputies were looking for Ruben Ramirez as a person of interest in the stabbing. Deputies want to know if Ramirez was home at the time of the stabbings. He was later found in San Francisco and authorities there took him into custody.
The woman, children and Ramirez are all family members. There are multiple generations living in the home and the victims are believed to be a grandmother and her two grandchildren who she was babysitting.
A family member returning home from work around 3:30 p.m. discovered the victims.
The Santa Clara County Sheriff's Department is working the case because the home is just outside San Jose city limits.