According to the Fresno County coroner's office, 25-year-old Stephen Perez of Reedley passed away Monday.
You may recall the crash happened Saturday night near Mountain View and Bethel avenues.
Investigators say Perez, ran a stop sign, and hit another car.
16-year-old twins, Amy and Linda Guiba were killed. Their 19-year-old brother Anthony died in the crash, as did 21-year-old Gypsie Yanes.
A viewing and visitation for the victims are scheduled for next Tuesday at Mennonite Brethren Church in Dinuba.
The family will hold a private burial on Wednesday morning, and Wednesday afternoon they will have a memorial service.
If you would like to make a donation, an account has been setup to help with funeral services.
Guiba Family Memorial Fund