Understanding how the tragedy unfolded requires analyzing the intersection of police calls, protective filings, and the final judicial actions taken by the state of Illinois.
| Timeline Phase | Incident & Behavioral Shift | Legal & Law Enforcement Action |
|---|---|---|
| Pre-Homicide Period | Unwanted contact, repeated property drive-bys, and escalating verbal threats targeting his ex-partner. | Local police reports filed; protective orders sought as harassment escalated in frequency. |
| Day of the Attack | Thompson arms himself, stalks the residence, and shoots James Vail without warning. | St. Clair County deputies respond; perimeter secured, crime scene processed, and an immediate manhunt launched. |
| Arrest & Indictment | Thompson is captured, brought into custody, and formally interviewed by St. Clair County detectives. | Grand jury indicts Thompson on multiple counts, including premeditated first-degree murder. |
| Trial & Sentencing | Court presents ballistic evidence, eyewitness testimony, and the long paper trail of prior harassment. | Guilty verdict returned; sentenced to mandatory life imprisonment without parole options in state custody. |
| Documentary Broadcast | Netflix features Thompson’s case in I Am A Stalker, prompting public examination of red flags. | Victim advocacy groups scrutinize televised criminal rationalizations and stalker interview ethics. |