(17:30) GILROY- A teacher at a Gilroy college prep school has been arrested. 32 year old William Dawson was taken into custody Wednesday evening following an investigation into allegations he was having sex with an underage female student during the 2014-2015 school year at Gilroy Early College Academy. Dawson has been charged with seven felonies, including lewd and lascivious acts with a minor, unlawful sex with a minor and a count of harmful matter sent to seduce a minor.