December 08, 2016 05:27 PM

Three teens have been arrested in connection with the death of 15-year-old Florida high school student Roger Trindade, who was declared brain-dead in October days after he was discovered with few obvious signs of violence.

On Oct. 15th, the teen was found unconscious in an upscale park in downtown Winter Park, Florida. A police report later stated that he showed “minimal signs of trauma or injury.”

Nearly two months later, police have charged two 15-year-old boys are charged with manslaughter and battery. A third boy, 14, has been charged with tampering with a witness.

Two of the teenagers appeared in court on Thursday afternoon. Citing the seriousness of the case, Judge Sally Keft ruled that they would both remain in custody at least until Jan. 4.

The three suspects are being tried as juveniles, and PEOPLE is not identifying them. The three suspects have not entered pleas or retained attorneys.

Police have released very few details about Roger’s death, although original witness statements alleged that the boy had gotten into an altercation with other teens.

In a statement, the Winter Park mayor said that authorities wanted to wait for the autopsy results before making an arrest. The autopsy reveled that Roger died of blunt force trauma to the head.

“Hopefully the family and community can find solace in knowing that although the process seemed lengthy, it was necessary so as to provide the State Attorney’s Office with sufficient information to proceed,” Mayor Steve Leary said in his statement.

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Source: Facebook

Victim’s Mom Shares Her Grief

PEOPLE obtained the 911 recordings from October, in which three bystanders — including a physician — say they tried to administer CPR to the teen. The doctor initially thought that the boy had simply fainted. Another woman told the dispatcher that she had seen “some kid who’s been passed out for I don’t know how long.”

Roger’s future looked bright before his death: His family moved from southern Brazil to Florida, where he enrolled at Winter Park High, a large school in an affluent suburb of Orlando, Florida. He spoke three languages and took advanced math classes.

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In an email to the Orlando Sentinel following the arrests, Roger’s mother expressed her sorrow about the loss of her son. (The Trindade family could not reached.)

“Having to accept that my son was beaten by young men who have education, wealth and live in a community like Winter Park is very difficult,” his mother said. “I’m going to pay a very high price every day of my life for not having my son with me. My penalty cannot be bigger than theirs.”

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