Police say a teenager with gang ties accused of fatally shooting another boy at a Las Vegas house party later boasted on social media about “being up on the scoreboard.”

Elijah Belt-Campbell , 17, was arrested and booked into the Clark County Detention Center on one count of open murder, the Metropolitan Police Department announced Tuesday. At the time of his arrest, Belt-Campbell, a lifeguard at Golden Nugget, was on probation under the Department of Juvenile Services, according to his arrest report.

The charge stems from the Aug. 5 killing of 16-year-old Jayden Collins of North Las Vegas. Officers found Collins’ body outside a home in the 5600 block of North Bonita Vista Street shortly after a large house party had taken place, police said.

An autopsy determined Collins had been shot

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