A former Weekapaug resident was sentenced Tuesday to more than eight years in federal prison after being convicted of receiving and possessing more than 500 images and videos of children engaged in sexually explicit conduct.Matthew Wallace, 32, who also lived in Ledyard, had been found guilty after trial in Bridgeport in March on one count of receiving and one count of possessing child pornography. The prison sentence of 100 months handed down by Senior U.S. District Judge Warren W. Eginton in Bridgeport will be followed by five years of supervised release.According to evidence presented at trial by Assistant U.S. Attorneys Neeraj Patel and Ray Miller, a Milford, Conn., police detective assigned to the Connecticut Child Exploitation Task Force logged into a peer-to peer Internet address assigned to Wallace’s Ledyard home computer. On May 28, 2010, agents searched his residence and seized computers and hard drives with images and videos of children, some as young as 5 years old, engaged in sexually explicit conduct. Wallace was freed on $100,000 bond signed by a family member after his Dec. 16, 2010, arrest. He moved into a family member’s home on Salt Pond Way. Following the March 7, 2013, verdict, he was confined to his home and was ordered to wear a monitoring device and adhere to a 9:30 p.m. to 6:30 a.m. schedule.However, his freedom was short-lived. He was ordered to prison to await sentencing after a March 13 hearing.The investigation included the FBI and Connecticut Child Exploitation Task Force, with federal, state and local law enforcement agencies. The Connecticut State Police and Ledyard police also assisted.The offense carries a maximum prison term of 10 years and a fine of up to $250,000.