A teenage boy posted a disturbing image on Snapchat after he was busted for the slaying of a 13-year-old cheerleader found dead in a remote wooded area of Florida, cops said Monday.

Aiden Fucci, 14, was charged with second-degree murder in the death of Tristyn Bailey, whose body was discovered on Sunday evening just hours after she went swimming, according to St. Johns County Sheriff Robert Hardwick.

In a twisted Snapchat posted after the arrest, Fucci can be seen giving the peace sign in the back of a patrol car.

“Hey guys has anybody [sic] seen Tristyn lately,” read a caption on the social media post.

Bailey, a seventh-grader at Patriot Oaks Academy, where Fucci is in the eighth grade, was last seen Sunday at around 1:15 a.m. at a community center, local outlet WJXT reported.

Her family reported her missing at 10 a.m. — and a large search of the area ensued, with dozens of community members scouring the woods near the North Amenity Center.

Bailey’s body was found by a neighbor at around 6 p.m. in a remote wooded area near a pond.

Later that night, Fucci posted the photo with the twisted message on Snapchat, according to WJXT.

The sheriff said that authorities were aware of the chilling selfie, but didn’t comment on it further.

The investigation is still in the “very beginning stages,” Hardwick said.

He also didn’t immediately provide a motive for the murder, or a cause of death for Bailey, who was fully clothed, when she was found.

In addition to attending the same K-8 school, the teens grew up in the same neighborhood, according to local outlets.

Fucci was being held at a Department of Juvenile Justice facility in Volusia County. He is scheduled to appear in court on Tuesday morning.

A candlelight vigil for Bailey was planned for Monday night in the Durbin Crossing neighborhood.