This article originally published at Helicopter crashes into kilometer-long slackline in Arizona, killing four.

The helicopter crashed after it struck a recreational slackline suspended in Telegraph Canyon on Jan. 2, killing all four ...

Investigators say a helicopter hit a highline stretched across Telegraph Canyon near Superior, killing four. Here’s what to know.

The NTSB released on Wednesday its preliminary report into the helicopter’s collision with a slackline, including new ...

A helicopter collided with a slackline in January, causing a fatal collision.

A helicopter collided with a slackline over a canyon in Arizona and crashed, leaving four passengers dead over the holiday weekend. Now, a family member has released their identities. The East ...