Deputies arrested Hill near Dixie Elementary School in Lucas Valley last weekend after complaints that he had exposed himself to a 10-year-old girl.
A search of his house revealed thousands of photographs and tapes depicting child pornography, along with what the sheriff's department describes as a "rape kit" that included condoms, tarps and restraints. Some of those photographs showed Hill in the process of exposing himself to young girls.
"In addition to the video evidence, we also found a backpack containing plastic tarp, lubricant, condoms, protective show covers, things of that nature," Debra Barry from the Marin County's Sheriff's Office said.
The district attorney's office has identified four female victims -- two middle school students in Kentfield, a 9-year-old girl in San Rafael, and the 10-year-old girl in Lucas Valley.
"He rolled down the window, patted on the seat and asked them to come to the car," Kentfield School District Superintendent Mary Jo Pettegrew said.
Local parents are outraged by this case. Pete Cyr of Novato interrupted court proceedings by shouting, "What are you doing to protect the children of Marin?" He then continued his tirade outside the court by saying, "This guy is a frickin' monster, and he is wandering our streets. Let him bring his bag of tricks, his flex cuffs, his lubricant, and the condoms, and let him come to my house and molest me. I'll show him a good time. My daughter is 10, she lives in Novato, and this guy is our worst nightmare."
"My daughter and the other friend just took off running to a house," parent Chris Colladay said.
Hill's attorney would not comment after court and neither did the district attorney's office, which is still considering evidence collected in a search at his Novato home.
Hill remains in jail on $1,000,000 bail. The district attorney would not comment on this case, nor did Hill's attorney, Douglas Horngrad.
Despite the new charges on Wednesday, there may be more to follow. The Marin County Sheriff's Office says there may be a link to at least one other case in Petaluma.
Hill will return to court and enter a plea on March 30.
ABC7 asked how long they think Hill might have been tracking young children and the sheriff's department says it does not yet know.