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Florida father-son duo accused of possessing child sexual abuse material

The father, Gary Coston, is a registered sex offender.

Dillan Coston, 27, (left) and his father Gary Coston, 49, (right) is accused of possessing child sexual abuse material in Putnam County. (Putnam County Sheriff, Copyright 2026 by WJXT News4JAX - All rights reserved.)

PUTNAM COUNTY, Fla. – A Putnam County father-son is accused of owning child sex abuse material after a cyber tip led to their home being searched, the Putnam County Sheriff’s Office said Friday.

Detectives executed a search warrant early July 9 at a Crescent City home occupied by registered sex offender Gary Coston, 49, and his son, Dillan Coston, 27, after receiving a cyber tip that child sexual abuse material was being viewed on a computer linked to Dillan Coston.

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The warrant was served about 5 a.m. Gary Coston was not at the home when detectives arrived, despite being on probation. He returned while officers were still on the scene, and detectives say they found a social media account that had not been reported in his Florida Department of Law Enforcement sexual predator packet.

Inside the home, detectives located Dillan Coston and a cellphone they say belonged to him. Anticipating additional images, investigators seized the phone. A forensic review completed July 14 allegedly found hundreds of files depicting children — from infants and toddlers to those approaching adult age — in sexual acts or nude.

Dillan Coston, 27, (left) and his father Gary Coston, 49, (right) is accused of possessing child sexual abuse material in Putnam County. (Copyright 2026 by WJXT News4JAX - All rights reserved.)

Detectives also say the phone contained an artificial intelligence–generated discussion in which Dillan Coston asked how people can be charged with a crime when they are caught by Chris Hansen if a minor isn’t involved. Hansen is known for the television series “To Catch a Predator” and for producing similar online videos.

Dillan Coston was arrested July 9 and initially charged with possession of sexual performance by a child and using a two-way communications device to facilitate a felony. Authorities later added 10 counts alleging possession of 10 or more child pornography images. He is being held in the Putnam County Jail on $305,000 bond.

Gary Coston faces an outstanding attempted capital sexual battery charge from a 2005 Clay County case. He was charged a probation violation and failing to report email addresses or internet identifiers, and remains held in the Putnam County Jail without bond.