It has been widely reported that searches of the car and one of the homes of Las Vegas shooter Stephen Paddock yielded stores of ammonium nitrate and tannerite, ingredients used in homemade bombs.
It has also been reported that Paddock was a licensed pilot but I haven’t seen anyone provide any details of the airplanes he owned.
A Nexis search reveals that licensed pilot Stephen Craig Paddock, born April 1953, of 1372 Babbling Brook Ct., Mesquite, Nevada 89034, owned two airplanes, both of which were four-seat, fixed wing single engine aircraft. The first, a Bellanca Super Viking model 17-30A, tail number 28082, was registered in 2005. The second, a Cirrus SR20, tail number 5343M, was registered in 2007.