Here’s what the owners of the radio tower that was hit by a helicopter near downtown Houston said about the deadly incident KHOU.comHouston helicopter crash: NTSB investigators continue investigation into deadly crash FOX 26 Houston‘A rookie mistake’: Prominent aviation attorney weighs-in on Sunday’s deadly crash involving tour operator KPRC Click2HoustonFlashing lights on tower hit in deadly helicopter crash in Houston’s Second Ward had history of not working, SkyEye crew says ABC13 Houston