After his arrest on July 16th, a trial date has been set for a former Helena elementary school custodian who is facing felony charges for alleged sexual abuse of children. Derrick Drivdahl is set to go to trial after pleading not guilty to his charge. A trial date has been set for November 19th. According to court documents prosecutors are saying that Drivdahl used Internet to gain access to illegal images of children. Drivdahl remains in jail at this time on $100,000 bond.