The police have named three suspects for the murder of EP, a worker at a plastic factory in Kosambi, Tangerang, Banten province.

The suspects are RA, 15, R, 20, and IH, 24.

“They all admitted what roles they played during the reenactment at the crime scene last night,” Tangerang Police detective chief Adj. Sr. Comr. Sutarmo said Monday.

Before murdering the 18-year-old girl, the three suspects gang raped her, he said.

“We found semen spilled all over the victim’s room,” he was quoted by tempo.co as saying.

According to the police investigators, the suspects had admitted that they strangled the victim with a pillow until she nearly fainted and took turns to rape her. Reportedly, one of the suspects then took a hoe and stuck its handle into the woman’s private parts and then kicked the wooden handle so it penetrated deeper. “At that time, the victim was still alive.” Sutarmo said.

The sadistic murder allegedly started when RA, who is the victim’s boyfriend, came to the boarding house for factory workers where EP lives on Thursday evening at 11:30 p.m.. RA, who had only been acquainted with EP for one month, reportedly asked EP to have sex, but she declined his request. Irked, RA went out the room and met two of his friends R and IH.

The three friends allegedly forced their way into the room and committed the offense.

EP’s body was discovered by her friends at PT Polyta Global Mandiri, Eroh, Tikroh and Nopi on Friday. They found that EP’s room was locked from outside and they decided to break into the room.

Jakarta police spokesman Sr. Comr. Awi Setiyono said police investigators had questioned eight witnesses as part of the investigation into the murder.