Days after he was charged with 10 counts of possessing child porn, an Alaska doctor died in a fire he may have set himself. The investigation into the fiery death of Ryan McDonough continues, with Alaska law enforcement officials attempting to determine how the fire that fully engulfed his Wasilla home began. McDonough, 46, died on Sunday, December 14, according to a statement from the Alaska State Troopers. After firefighters extinguished the blaze, the doctor's remains were found amid the smoldering wreckage of his residence. "The preliminary investigation indicates the deceased male located in the residence is Ryan McDonough," read a statement from the Alaska State Troopers. His remains were later positively identified through an autopsy. Investigators said that they strongly suspect McDonough intentionally started the fire. Alaska State Troopers have alleged that McDonough - who was fired from his position as an interventional cardiologist at Mat-Su Regional Medical Center and Mat-Su Medical Group - was arrested just last week as part of "Task Force Dawnbreaker," a wider sting operation launched in the area by the Anchorage Police Department back in July. "It's very shocking," hospital spokesperson Deena Straub said to Alaska Public Media on Monday. "As soon as we found out on Thursday, [December 11] we terminated him." When he was in court on Friday, December 12, McDonough pleaded not guilty to multiple counts of possessing material depicting child sexual abuse, Us Weekly has learned. Police said McDonough was first investigated after the National Center for Missing and Exploited Children had forwarded a tip to Anchorage cops about child sexual abuse material (CSAM) that was being uploaded to McDonough's Dropbox account, according to a statement from the Alaska State Troopers. Texas Gynecologist Arrested for Filming Exams, Performing Unneeded Procedures While executing a search warrant at the home, investigators said they discovered numerous folders on his Google and Dropbox accounts containing what they claim was child sexual abuse material, continues the statement. To police, McDonough claimed to have "no knowledge" of the explicit files and he even allowed detectives to search his phone, according to the statement from the Alaska State Troopers. McDonough was freed last week after his wife paid his $50,000 cash bail, according to Alaska Public Media. Governor Mike Dunleavy had appointed McDonough to the state Medical Board back in August. But McDonough resigned in November. According to Anchorage Daily News, soon after his appointment, McDonough failed to show up for two months' worth of board meetings, which blocked the creation of new policies, including several anti-transgender measures. Reports claim that McDonough had voted to effectively ban all gender-affirming care for young trans people prior to leaving his post. Dunleavy's office said in a statement to local media it had no idea that McDonough was under investigation. If you or someone you know has been sexually assaulted, contact the National Sexual Assault Hotline at 1-800-656-HOPE (4673). If you suspect child abuse, please call the Childhelp National Child Abuse Hotline at 1-800-4-A-Child or 1-800-422-4453, or visit ChildHelp.org. All calls are toll-free and confidential, and the hotline is available 24/7 in more than 170 languages.