Simon Masrani is an InGen executive and the owner of Isla Nublar, who was entrusted by John Hammond to turn the failed Jurassic Park into something successful. He salvaged the remnants of InGen's folly and reopened Jurassic Park with a facelift, renaming it "Jurassic World." Among the attractions at the park is the fearsome Indominus rex, a genetically-engineered predator created by chief scientist Dr. Wu to be the ultimate killing machine in response to Masrani's demands that Jurassic World have bigger, badder, "cooler" dinosaurs.
Naturally, the unstoppable rampaging behemoth soon escapes from her paddock, killing supervisor Nick and worker Ellis, as well as roaming the island freely and slaughtering all of InGen's precious, expensive dinosaurs. To say nothing of all the innocent tourists.
Fortunately, up to this point, Indomins Rex has been confined to a less populated part of the island and her victims have all been park personnel (a tenacious effort to kill manager Claire Dearing's nephews Zach and Gray notwithstanding). But as she makes her way closer and closer to the areas with tourists, Masrani decides to take action. He first assigns the Asset Containment Unit (ACU) led by Commander Hamada to recapture Indominus using non-lethal weapons. Naturally, this goes about as well as you'd expect, and in short order Hamada and his entire security team get killed. After this, Masrani decides Indominus must be killed.
His plan? Attach a minigun to his private helicopter and shoot the thing. A lot. An amateur pilot, Masrani has been taking flying lessons, but because his flight instructor has gotten caught up in the evacuation of the island, he decides to put his money where his mouth is and fly the copter himself.
So off they go, quickly catching sight of the offending beastie near the park's aviary. Tempting fate, Masrani tells the ACU personnel riding in the chopper with him to "look alive." The gunner opens up on Indominus, who, fleeing, crashes through the glass wall of the aviary, startling all of the Pteranodons and Pterodactyls inside. They in turn fly out through the hole and promptly swarm the chopper. The gunner falls out and gets snatched away by one of the flying reptiles, while the trooper riding in the co-pilot's seat gets speared through the chest by the beak of a Pteranodon.
Struggling to keep control of the aircraft, Masrani can't hold it and the copter promptly veers into the aviary dome, smashing through it, falling down to the ground and getting destroyed in a spectacular CGI explosion.