Fabiani, 40, also known as Angelo Fabiani Arroyo, is charged with child endangerment and hit-and-and-run with serious injury or death. He faces up to 7 years in prison if convicted.
Fabiani was on probation for a drunken driving conviction at the time of the June 2 crash on Interstate 5 near Rosecrans Street. His son, Valentino Fabiani Arroyo, was declared brain-dead at Rady Children's Hospital eight days later.
The boy was strapped in a child-safety seat in a 2004 Nissan Titan that veered off southbound Interstate 5 about 8 p.m. The truck, which was hauling a small water-craft trailer, careened down an ice plant-covered embankment, slammed into a palm tree, toppled onto its passenger side and came to rest perched atop a concrete retaining wall above Jefferson Street.
The defendant got out of the vehicle and tried in vain to pull out the child, according to witnesses. He then re-entered the damaged pickup and freed the youngster, but in doing so caused the child to fall about eight feet onto a concrete sidewalk below, according to prosecutors.
The defendant eluded capture for two days before being arrested in his hometown of Imperial Beach.
—City News Service contributed to this report.