In a quiet home in East Greenwich, New Jersey, the life of 66-year-old Michael Dabkowski came to a brutal and untimely end on March 8, 2021. His death was not a random act of violence, but one deeply rooted in a past relationship of mentorship that had taken a dark and twisted turn. The man responsible was Sean M. Lannon, then 47, who had once been under Dabkowski's guidance through the Big Brothers Big Sisters program. The violent encounter saw Dabkowski bludgeoned to death with a hammer inside his own residence.
The investigation into Dabkowski’s murder quickly pointed to Lannon, who had fled the state in the victim's car. His run from the law was short-lived, as he was apprehended in St. Louis, Missouri, just two days later, on March 10, 2021. In his confession to investigators, Lannon claimed that his horrific actions were motivated by years of sexual abuse he had suffered at the hands of Dabkowski as a child.
He alleged that he had gone to Dabkowski's home to retrieve photographic evidence of the abuse. However, despite these claims, no evidence was ever presented in a court of law to substantiate his allegations.
The grim story did not end with the murder of Michael Dabkowski. As authorities delved deeper into Lannon's activities, a trail of violence and death began to emerge across multiple states. Lannon was also implicated in the deaths of four other individuals in New Mexico, including his ex-wife, Jennifer Lannon. The bodies of his ex-wife and two of her friends were discovered dismembered and stored in plastic bins inside a vehicle at an Albuquerque airport. A fourth man in New Mexico was also allegedly killed by Lannon. During his interactions with law enforcement, Lannon made the chilling claim that he was responsible for the deaths of 16 people in total, though these claims remain unverified.
For the murder of Michael Dabkowski, Sean M. Lannon pleaded guilty to first-degree murder. In a New Jersey court, he was sentenced to 35 years in prison for the crime. Under the terms of his plea agreement, he will be required to serve at least 30 years of his sentence before becoming eligible for parole. Following his sentencing in New Jersey, Lannon still faces additional murder charges in New Mexico, where legal proceedings are ongoing. The brutal death of Michael Dabkowski thus became the first chapter in a horrifying saga of a multi-state killing spree, leaving a trail of devastation and unanswered questions.
