Editor's note: the attached video courtesy is courtesy of WCAU-TV. It shows police investigating crime scenes in New Jersey and New Mexico. ST. LOUIS - A man sought in the killings of four people in New Mexico and one in New Jersey was arrested Wednesday morning in St. Louis, the U.S. Marshals Service said. Sean Lannon was taken into custody in the 7000 block Oleatha Avenue. Investigators were seeking Lannon in connection with a slaying Monday in East Greenwich, New Jersey. The 47-year-old also is a person of interest in the deaths of his ex-wife and three men whose bodies were found last week in a vehicle at a New Mexico airport garage. Authorities considered Lannon armed and dangerous, and the marshals service had offered a $5,000 reward for information leading to his arrest. They didn't immediately offer details on what led them to Lannon Wednesday. Read more: https://www.ksdk.com/article/news/cri...