Three men have been indicted in the brutal sexual assault and slaying of a teenage girl whose body was discovered inside a Baltimore home that had been intentionally set on fire.

Adonay Dixon, 23, John Childs, 20, and Raeshawn Rivers, 14, were indicted Tuesday on first-degree murder, first-degree rape, arson, kidnapping, and other charges stemming from the death of 16-year-old Arnesha Bowers, a junior at Baltimore City College high school.

If convicted, they could face life in prison.

Murder: The body of Arnesha Bowers, 16 (pictured) was found burned along with the Baltimore home where she lived with her mother; she was raped and strangled to death

Police said the killing was part of a gang initiation. Detectives previously said that Dixon and Childs are Bloods members, The Baltimore Sun reports.

Bowers' body was discovered June 7 inside her grandmother's home, which investigators say was set on fire in an attempt to conceal the crimes.

According to authorities, the men broke into the home Bowers shared with her grandmother in northeast Baltimore, sexually assaulted Bowers and then strangled her with an electrical cord before stealing electronics and setting the house ablaze.

Authorities said Bowers knew her attackers. She had been hanging out with them just hours before the crime, WBAL-TV reports.

Bowers' grandmother took her home and left for an overnight shift of work at a hospital.

Police say Childs followed them home and, after learning where Bowers lived, returned with Dixon.

The three robbed the home, stealing $500 worth of valuables, WBAL-TV reports.

Indicted: Adonay Dixon, 23 (left) and John Childs, 20 (right) were indicted Tuesday on first-degree murder, first-degree rape, arson, kidnapping, and other charges stemming from Bowers' death

Tried as an Adult: Raeshawn Rivers, 14, faces the same charges and is being tried as an adult in the case

Baltimore Police Commissioner Anthony Batts on Tuesday called the crime 'pure evil.'

Baltimore City State's Attorney Marilyn Mosby said that 14-year-old Rivers would be tried as an adult in the case, ABC reports.

Police said Rivers knew Bowers the best and the two would sometimes 'hang out,' according to ABC.

'I promise to continue to pursue justice on behalf of Arnesha who was brutally assaulted and murdered,' Mosby said at a news conference Tuesday.

'The brutality of Arnesha's death has affected all of us.'

Home: The men broke into the home (pictured) Bowers shared with her grandmother in northeast Baltimore, sexually assaulted Bowers and then strangled her with an electrical cord

Attackers: Authorities said Bowers knew her attackers; she had been hanging out with them just hours before the crime

Police say that Rivers 'participated actively' and was a 'principal actor' in the murder, FOX reports.

'Please keep in mind that these defendants are all presumed innocent unless and until proven guilty,' she said.

Adonay's mother, Sandra Dixon, said her son, who has a long arrest record, has always had behavior problems, WBAL-TV reports.

A court document states that Childs told police that it was Dixon who helped plan the crime, who choked the girl, and who dragged her into the basement.

Followed: Police say Childs followed them home and, after learning where Bowers lived, returned with Dixon

However, Sandra said Dixon told police that though he was in the house, he did not touch the girl.

'I have to also have faith the truth is going to come out, and if [Dixon] did do this, then he does need to be put away for the rest of his life,' she said.

'If he didn't do this, he needs to be cleared.'