After a Texas family filed a lawsuit against two scuba companies following the drowning death of their 12-year-old daughter, an arrest has been made.
William Armstrong, a former assistant chief deputy in Collin County, has been charged with felony injury to a child. Armstrong was the certified scuba instructor tasked with supervising 12-year-old Dylan Harrison during a diving certification class on Aug. 16, 2025, along with certified divemaster Jonathan Roussel. At some point during the class, Dylan disappeared. More than 30 minutes after her instructors noticed she was gone, she was found unresponsive and was pronounced dead by emergency medical personnel.
As Law&Crime previously reported, Dylan’s family sued Armstrong, Roussel, the National Association of Underwater Instructors that issued their respective certifications, and other organizations connected with the scuba class Dylan was taking. The Harrisons booked the class and bought equipment at Scubatoys in Carrollton, Texas, which also hosted an introductory class before the eight students and two instructors headed to a lake at The Scuba Ranch…