The helicopter was an R44 private aircraft coming from Ellington Airport when it hit the tower near downtown Sunday night, causing it to collapse.

A helicopter crashed in Houston, Sunday, killing all four people on board including a child. The crash happened near Engelke ...

The investigation continues after a helicopter crash in Houston left four people, including a child, dead on Sunday night.

ABC13's Don Armstrong said the red flashing lights on the radio tower are often out, and the lighting issue was reported to the FAA on Oct. 17.