KRXI FOX 11 Reno - Search Results The following is an archived video story. The text content of that video story is available below for reference. The original video has been deleted and is no longer available. Child porn investigation takes an even darker turnRENO, Nev. -- A 46-year-old Reno man is facing a number of charges including the sexual assault of child.Brett Doyle was arrested on August 9. Washoe County Cybercrime Detective Sergeant Dennis Carry said, "He was having an online chat, engaging in a conversation that was sexually explicit about children." Carry said the person Doyle was talking to online tipped off investigators, leading to the arrest.Doyle was initially charged with Lewdness with a Child Under 14 and Child Abuse/Neglect. But the case took a darker, more disturbing turn this week. Investigators said they conducted a forensic investigation that looked at information on the hard drive of Doyle's computer.Carry said that investigation discovered Doyle had sexually assaulted a child under the age of 14 and videotaped it. Doyle had tried to cover up the crime by deleting the videotape. "Lucky for us, we're very good at what we do and computer forensics is something in law enforcement that is becoming more and more common," Carry explained. "Every case like this has some tie to electronic evidence. It can be a cell phone or a computer, but when people try to hide stuff, delete it, scrub stuff, wipe it, or try to get rid of it completely, we can still find it."In addition to the other charges including Sexual Assault of a Child Under the Age of 14, Doyle is also charged with unlawful use of a minor in producing pornography. Investigators do not believe there are any additional victims. They believe all the charges are related to a single child that took place earlier this year at an undisclosed location in Washoe County.The investigation is ongoing. Anyone with additional information is asked to contact the Washoe County Sheriff’s Office Detective Division at (775) 328-3320 or Secret Witness at (775) 322-4900. Read more about the arrest in this news release from the Washoe County Sheriff's Office.