Mug Shot Monday (continued)

A Miami father turned his son’s smartphones over to police because he was concerned about social media posts showing the teen with guns.

Investigators searched the devices -- and found child porn, the Miami Herald reports.

Sean Mesa, 18, was arrested Friday on charges of possessing child pornography and improper display of a firearm.

His arrest comes as online threats populate social media following the Feb. 14 massacre at Marjory Stoneman Douglas High in Parkland, Fla.

Accused gunman Nikolas Cruz’s online posts with threats and weapons had raised red flags before the shooting — but weren’t investigated.

The shooting spree has sparked copycat threats -- and a wave of arrests across Florida.

Mesa told the detective that “he likes guns and it was his right to post on social media whatever he wished.”

Mesa’s concerned father turned the teen’s devices over to authorities. The U.S. Secret Service found a video of what appeared to be a child under the age of 10 being sexually abused, the warrant shows, the Miami Herald reported.

The video had been shared with two other people, according to the warrant.

Mesa used other devices to continue posting on Snapchat.

One post shows a pistol on his lap at the wheel of a car and is captioned, “now they watching so I ain’t stopping.”

Students and teachers at Krop Senior High are reportedly “alarmed and afraid,” according to the warrant.

(Via The Daily News)