Investigators say 27-year-old Marcos Echartea's tried to flirt with the baby's mother at a house party in central Fresno earlier in the night.
Echartea kept following the mother around the party, so she decided to grab her baby and leave with a friend.
As the mother got into a car with Fayth to leave, Echartea fired at them three times, hitting the baby in the head.
Fayth survived the shooting and her mother was not injured.
A judge found Echartea guilty on charges of attempted murder, shooting at an occupied vehicle, assault with a firearm, and having a gun while under a restraining order.
He will be sentenced at a later date.
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