Copyright NBC10 Boston

A Massachusetts man was sentenced to life in prison without parole nearly four years after his girlfriend's body was found in a Saugus marsh. Jurors convicted Bruce Maiben, a 48-year-old Lynn resident, of first-degree murder on Monday. Sherell Pringle, a 40-year-old Woburn woman, was reported missing after she did not return home from a date with Maiben on Dec. 18, 2021. Family and friends found her body two days later in the Rumney Marsh Reservation off of Route 107 in Saugus. Pringle's mother, Pearl Garner, gave a victim impact statement at Maiben's sentencing hearing Wednesday. "When Sherell was murdered, a piece of me died with her," Garner said through tears. "I think about her all the time and want to know why — why you did something like this, so vicious." Garner said Maiben stabbed her daughter more than 200 times, leading to a closed-casket funeral. After Pringle was found, Maiben was arrested on charges of larceny over $1,200, tampering with evidence and obstruction of justice. Prosecutors later charged him with murder. Family and friends of Pringle have said they used technology to find out where her phone was — a catch basin on the side of the road — and backtracked from there. Then they saw a purse by the road. "What hurts the most is, I told these cops from the jump to locate Bruce Maiben," Pringle's son, Jahmani Larionne, said at the time. "I told them Day 1, 'You need to located Bruce Maiben. He lives in Lynn. You need to ping his phone and find him.'"