Stephen Paddock is the man authorities have identified as the shooter responsible for the most deadly mass shooting in modern U.S. history. On the night of Oct. 1, 2017, Paddock, 64, opened fire on a country music festival from his hotel room on the 32nd floor of the Mandalay Bay Resort and Casino. Firing for several minutes and using multiple rifles fitted with “bump stocks,” Paddock injured nearly 500 people and killed 58. Paddock took his own life in his hotel room before the SWAT team could reach him.
Paddock was a multi-millionaire who reportedly made a great deal of money through real estate ventures and possibly gambling. Reports suggest that Paddock was a high-level gambler, who regularly spent tens of thousands in casinos, including in the days leading up to the massacre.
Paddock’s motive for the mass shooting remains a mystery. Paddock’s live-in-girlfriend, Marilou Danley, 62, told the FBI that she had no indication that he was planning to do anything violent. Danley was in her home country, the Philippines, during the shooting. She told the FBI that Paddock had purchased a ticket for a flight for her to the Philippines about two weeks before the attack and wired $100,000 to her so she could purchase a home for her and her family. According to the Las Vegas Review-Journal, Paddock had been prescribed anti-anxiety medication for at least a year prior to the attack; some experts say that a potential adverse reaction to the medication is likely not an explanation for his actions. Paddock’s brother has expressed shock at his actions and says Paddock was neither overly political nor religious, to his knowledge.
Paddock's father, Benjamin Hoskins Paddock, was a serial criminal who was once included on the FBI's most-wanted list and described by the bureau as "extremely dangerous" and "diagnosed as being psychopathic."