A 16-year-old arrested on gang-related charges has been certified to be tried as an adult, while a co-defendant who’s also a juvenile is cooperating with prosecutors in exchange for adjudication in the juvenile court, according to court documents.

Daonte Lamar Chalk faced multiple felony charges connected to alleged offenses that occurred in January at King’s Fork High School and at a private residence.

According to documents in Suffolk Circuit Court, a juvenile offender approached a juvenile victim after he got off the bus on Jan. 14.

The offender allegedly told the victim, “I heard you running around claiming to be trill.”

Trill, according to police, is another name for prohibited street gang Eastside.

In order for the victim to join the gang, the offender allegedly said, “You gotta see my n— Lil’ A,” an Eastside member.

The victim was then escorted behind a house in the 100 block of Wellons Street, where several gang members allegedly subjected the victim to an apparent initiation assault, after which the victim was told he was in and was shown “the handshake.”

The victim told police he suffered two black eyes and a bloody nose, court documents reveal.

Chalk, who has not yet been sentenced, was found guilty of several felonies — malicious wounding by mob, conspiring to maliciously wound by mob and two counts of participating in the criminal act of a prohibited gang — plus a gang recruitment misdemeanor, according to Virginia’s online court information system.

Another alleged participant, Jeremiah Matthew Shelton, has not yet been tried after pleading not guilty to the same charges.

Another alleged participant, Aaren Demetrius Chalk Jr. — identified in court documents as Lil’ A — awaits arraignment on the same charges.

Trayqwon Demico Stallings, meanwhile, agreed to plead guilty to the misdemeanor gang recruitment charge in exchange for prosecutors dropping two felony charges: participating in the criminal act of a prohibited gang and conspiring to participate in the criminal act of a prohibited gang.

Stallings received a sentence of one year in jail. All of it, except the month he’d already served, was suspended pending two years of good behavior, avoiding prohibited gangs and gang associates, not contacting his victim or the cooperating juvenile witness, and admitting he was a member of Eastside — a gang authorities say is also known as Trill, Trill 100 and 100.

According to court filings, the victim allegedly told police that Stallings supervised and timed his initiation beating, later telling him it lasted approximately 30 seconds.

According to a city news release, the victim, 16, was assaulted twice at King’s Fork High School as well as Wellons Street.

Suffolk Police Department’s anti-gang unit arrested 10 males altogether and filed 40 charges, according to the release.

While eight of those charged were juveniles, according to the city, school district spokeswoman Bethanne Bradshaw stated that only three juvenile students were involved in the two incidents at King’s Fork High School. Two 17-year-old ninth-graders and one 15-year-old 10th-grader were suspended and recommended for expulsion, she stated.

“At the school level, we are unable to connect the different events, even though the police later found a connection. At the time of the incidents, we did not know there was gang affiliation,” according to Bradshaw.

According to search warrants, police are attempting to gather intelligence on criminal street gangs operating in Suffolk in a separate investigation stemming from an alleged initiation assault in a King’s Fork High School restroom by members of “The Fam.”

Bradshaw stated the school’s investigation found a student walked another student into the restroom on April 14. Two other students punched the student who was escorted in the face while a fourth student recorded the incident on his phone.

The two students who threw punches have been recommended for expulsion while no disciplinary action was taken against the other two, according to Bradshaw. “All students are 9th grade black males and no other students were involved in this incident,” she stated.

The search warrants state that the alleged victim had to “fight his way out of the bathroom,” adding that “jumping in” is a common recruitment method.

Police searched residences connected to two of the students after discovering social media posts relating to The Fam, seizing cellphones, a memory stick, a marijuana grinder, an external cellphone battery, two T-Mobile boxes, a bandana and a document.

The 16-year-old Daonte Lamar Chalk was also certified to be tried as an adult on some burglary-related charges for his alleged involvement in a break and enter in the 100 block of Chestnut Street on Jan. 28. He pleaded guilty to those charges, according to Deputy Commonwealth’s Attorney James Wiser.

Court documents state Chalk was found guilty in the juvenile court in October of violating the terms of probation imposed for assault and battery, concealing merchandise, violating a court order, violating a curfew, two counts each of trespassing and vandalism, and three counts of petite larceny.

The Turlington Woods student missed numerous appointments with his probation officer, fails to attend school regularly, tested positive to marijuana and admitted to using it, documents show.