Ryan Blaine Petty (born January 15, 1970) is an American school safety activist. His 14-year-old daughter Alaina Petty was murdered in the Stoneman Douglas High School shooting on February 14, 2018. Petty is credited with helping to pass the "Marjory Stoneman Douglas High School Public Safety Act" Florida Senate Bill 7026 just three weeks after his daughter Alaina was murdered. At the federal level, Petty worked with Senators Orrin Hatch, Marco Rubio and Bill Nelson to pass the STOP School Violence Act and the Fix NICS Act of 2017. He has met frequently with Florida governor Rick Scott, and many federal lawmakers.