Toxicologist may testify that Sierra LaMar's killer was exposed to pesticides

Growing up in a shack in the middle of the San Martin strawberry fields where his Mexican-born parents picked fruit, convicted murderer Antolin Garcia-Torres may have been exposed to harmful pesticides, perchlorates and "possibly" mercury, a toxicologist will likely testify in the coming weeks.

Top Videos

Most Watched

KTVU Vault

Wild Rides