Matthew Mayer, based in St. Louis, MO, US, is currently a Security Manager at Peabody Energy, bringing experience from previous roles at GARDA and St. Louis City Police Department. Matthew Mayer holds a 1997 - 1999 Webster University. With a robust skill set that includes Firearms, Patrol, Enforcement, Police, Criminal Justice and more, Matthew Mayer contributes valuable insights to the industry. Matthew Mayer has 1 email on RocketReach.