A Florida man convicted of killing a Miami Herald employee who was abducted on her lunch break was executed Tuesday evening. Michael Tanzi was pronounced dead at 6:12 p.m. following a three-drug injection at Florida State Prison for the April 2000 strangling of Janet Acosta, a production worker at the South Florida paper. The victim was attacked in her van, beaten, robbed, driven to the Florida Keys and then strangled before her body was left on an island.