Tyler Mailloux has taken a plea deal in the 2022 death of 14-year-old Gavin Knupp. Mailloux’s jury trial was set to begin on Monday, March 3. During an over-seven-hour motions hearing on February 25, however, Mailloux pleaded guilty to one felony count out of 17 various misdemeanors and felonies he faced in Worcester County Circuit Court.