CHICAGO (STMW) — A fourth teenager has been charged with sexually assaulting a 12-year-old girl in December 2012 in Englewood, and posting a video of the attack on Facebook.

Justin Applewhite, 16; Kenneth Brown, 15; and Scandale Fritz, 16, were charged as adults in May with one count of aggravated criminal sexual assault, according to the Cook County State’s Attorney’s office.

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On Friday, 16-year-old Dyquier Garrett was charged with aggravated criminal sexual assault, according to state’s attorney’s office spokeswoman Tandra Simon.

The first three defendants are being held on $900,000 bonds, while Garrett was ordered held on $500,000 Friday.

The 12-year-old girl walked to Fritz’ home in the 400 block of West 60th Place on Dec. 15, 2012, to meet with him, according to court documents. When she arrived, Fritz took her to the basement and sexually assaulted her, despite her resistance and repeated demands to stop, according to prosecutors.

Fritz then brought Applewhite and Brown—who the girl had seen taking a gun in and out of his pocket earlier—down to the basement, according to court documents.

They asked the victim three times to engage in sex acts with Brown and Applewhite, according to court documents. She refused the first two times, but agreed the third time because she knew the three were gang members and she was afraid Brown would shoot her.

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Brown and Applewhite then sexually assaulted the girl while Fritz videotaped the rape, according to prosecutors.

The next day the girl filed a police report and went to the hospital, court documents said.

On Dec. 17, the video of the attack was posted on Brown’s Facebook account, according to court documents. The video was later posted on Fritz and Applewhite’s Facebook pages as well.

It showed Brown waving the gun in the air during the sexual assault while all three yelled gang slogans, according to court documents.

Fritz was identified in the video because at one point he turned the camera towards his face, prosecutors said. He later provided a handwritten statement admitting his involvement.

The first three suspects are scheduled for a status hearing on Dec. 11 before Judge Vincent Gaughan, according to the state’s attorney’s office.

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(Source: Sun-Times Media Wire © Chicago Sun-Times 2013. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.)