Two teens were being held in custody Thursday in connection with the shooting death of a 16-year-old boy seeking to sell his gaming console, Lake County Sheriff Oscar Martinez Jr. said.

The teens — an 18-year-old and a 17-year-old — were arrested in the death of Johnny Peluyera as part of a tactical unit operation that took place Wednesday, said Martinez late Thursday morning. Officers arrived at their homes in Gary and Crown Point with search warrants, and they found evidence connecting the teens, Martinez said.

The two are currently held in the Lake County jail on probable cause, Martinez said, adding that they will seek to charge the 17-year-old as an adult in the shooting.

Peluyera, of Merrillville, died June 12 near 51st Avenue and Maryland Street, police said. His father, John Peluyera, drove him to the city’s Glen Park section so he could sell an Xbox game to an online buyer.

The boy had been looking to sell his Xbox to get a new iPhone, his uncle, Joe Bernacet, said previously. The seller asked him to deliver it, he said.

His dad took the teen the site after coming home from work at Albanese Candy, relatives said.

“When my brother got there, he said he had a bad feeling,” said Bernacet, of Peluyera.

Gary police said what happened next was a robbery attempt.

They wanted to test it, Bernacet said, and ended up taking it to two houses. As the teen was outside the vehicle with the Xbox, the dad spotted a gun, Bernacet said he told him.

“He shouted just let him have it, it’s not worth it,” Bernacet said. The teen was shot as he ran back to the vehicle, he said. He still had the Xbox in his hands.

Police found the boy shot in the back in the car’s passenger seat just after 6 p.m., a release from the police said. The coroner’s office pronounced the teen dead at the scene about 6:50 p.m.

Peluyera was described as a jokester who loved to prank his friends and family. He was an avid gamer who loved Fortnite, Rocket League, basketball and Pontiac Trans Ams, an interest passed down from his dad.