Report Finds Deficiencies in MNPD's Response to Warnings About Christmas Bomber Despite the police department's assertions, a review panel found no record of bomb squad officer pursuing initial tip Tweet Anthony Warner's Antioch homePhoto: Matt Masters The Metro Nashville Police Department's investigation into warnings in 2019 that Christmas Day bomber Anthony Warner was building bombs at his home was insufficient, according to a report released Wednesday by the department. Warner detonated a bomb in an RV on downtown Nashville's Second Avenue on Christmas morning, killing himself and damaging dozens of buildings up and down the street. A warning blaring from the RV before the explosion alerted residents and allowed police officers to evacuate the area. No one else was killed in the explosion. Warner was apparently obsessed with a number of conspiracy theories, but his motives for the bombing — apart from a desire to kill himself — remain unclear. Metro police first became aware of Warner in August 2019, when his then-girlfriend told police that he was building bombs in his home.