A teenager accused in a series of sexual assaults of teenage girls is set to be formally arraigned Friday.
Joshua Benson, 19, is accused in Bucks County of raping several teen girls.
Benson remains held on $5 million bail after being charged with raping and sexually assaulting multiple underage girls -- some who he met online.
At least eight victims came forward and accused Benson of sexual assault.
Friday's court proceeding is a formal move ahead of July's trial.
Benson was arraigned last November on charges that he raped two young girls.
Originally, authorities said the Bensalem, Pa., native also violently sexually assaulted five other girls over a five-month time period when he was under the age of 18. All of the victims were between the ages of 14 and 16, officials said.
After media coverage of Benson's arrest, another woman came forward and said he assaulted her in 2011 when she was just 17. Since the alleged assault occurred when Benson was also underage additional charges were filed in juvenile court, according to police.
Benson moved to the area from Utah about over three years ago, shortly before the alleged assaults began, officials said.
Benson, who cursed at reporters on his way into court following his arrest, met some of his victims on a dating website and others through friends, authorities say. They say the teen would befriend the girls and make them trust him before violently forcing himself on them.
"Once he befriended them and gained trust in them where they agreed to have a very short-term relationship with him. Once he began engaging in sexual contact it immediately turned violent," Bensalem Police Sgt. Andrew Aninsman said.
The most recent victims say they were forced to perform sex acts in the basement of a townhome along Arrowood Drive in Bensalem, officials said.
Benson was locked up in a juvenile detention center on charges he assaulted the five girls while he was underage. He was then transferred to the Bucks County Prison after he turned 18.
Police believe there could still be more victims. They urge any girls to come forward.
"We do believe there are many other victims out there," Aninsman said. "If you see this, and your gut is wrenching as to what happened to you, pick up the phone and call Bensalem Police and we will make sure that we do everything in our power to make sure you get justice."