White/Caucasian male Jon Allard Jr., age 54, died in Belleville, Illinois, on September 12, 2018. A career prosecutor in the St. Clair County State's Attorney's Office for 18 years, he was widely described by colleagues and community groups as a devoted public servant, father, husband, son, and brother whose happiest moments were spent coaching his kids, traveling with his wife, and catching live concerts. Obituaries and bar notices placed soon after his death fixed the date and place and painted a portrait of a well-liked local attorney with deep roots in Belleville.
Multiple references to contemporaneous reporting indicate that Jon Allard Jr., age 54, died of a self-inflicted gunshot wound, not at the hands of another. Gun Memorial's entry for him, which compiles data from local reporting and the Gun Violence Archive, attributes its summary to a Belleville News-Democrat article headlined “Former assistant state's attorney dies of self-inflicted gunshot wound.” While the obituaries do not discuss manner of death, they corroborate his identity, age, location, and public career, aligning with the timeline and community response that followed.
Family reflections shared later add human detail to the final day without contradicting the basic facts reported publicly. A remembrance by his brother recounts seeing him around midday on September 12, 2018, a quiet, ordinary moment that became a hinge for grief, and underscores that warning signs are not always visible in the days or weeks before a death by suicide. This personal account has been used by the family to advocate for mental-health awareness in Jon's name.
There were no publicly reported suspects or arrests connected to the death of Jon Allard Jr., age 54. Because authorities determined the gunshot wound to be self-inflicted, the case did not generate a criminal investigation into a perpetrator, and subsequent coverage and memorials focused on his life, service, and the community's mourning rather than any search for an assailant.
