HOUSTON (AP) - Federal investigators say a video made by a witness shows a Houston police helicopter rotating in the air before plunging to the ground and crashing, killing one person aboard and injuring the other. In a preliminary report issued Wednesday, the National Transportation Safety Board drew no conclusions as to the cause of the deadly May 2 crash. The NTSB noted that the weather was good and winds were light when the crash happened near Bush Intercontinental Airport shortly after 2 a.m.

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