Authorities say Sean Lannon, 47, was arrested Wednesday morning in St. Louis, Missouri, by the US Marshals Service. He was wanted for questioning in connection with the brutal death of a middle-aged man found dead inside a house on Tuesday at Myrtle Avenue in East Greenwich Township. Investigators say Lannon is familiar with the victim.
Authorities believe Lannon fled to South Jersey, where he lived, after potentially playing a role in the murder of four people in Albuquerque, New Mexico. He is considered a person interested in quadruple homicide.
Albuquerque police said the bodies of Jennifer Lannon, Sean’s ex-wife, and three others – ages 21, 40 and 60 – were found on Friday in a truck that was abandoned in an airport parking lot.
Court documents show that Jennifer and Sean divorced in 2019.
Lannon is also accused of breaking into a building on Monday in Monroeville, Elk Township, while armed with a knife, the day before the victim was found in East Greenwich.
Detectives also say Lannon is a former military man with past drug abuse and a history of violence.
Gloucester County prosecutor Christine Hoffman said new charges against Lannon in connection with the murder in East Greenwich Township are available.
“While the wide range of specific law enforcement and social service agencies involved in this investigation will become clearer in the future, the GCPO prosecutor and investigation team are also grateful and deeply grateful for the contributions made to this ongoing investigation by members community and the media, ‘she said.
The authorities encourage any witness with information about this crime to call the sergeant. John Petroski of the Gloucester County Prosecutor’s Office at 856-498-6238.
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