Zayn Malik just canceled his UK concert appearance to what he says is the "worst anxiety" he's ever felt during the course of his career.

As the world is still learning about the horrific events that unfolded in Central Florida this weekend, there are more details coming out about Omar Saddiqui Mateen, the 29-year-old man that killed at least 50 people and injured 53 more at Pulse Nightclub in Orlando, Florida.

The heart of Central Florida is on high alert this weekend after news broke that a gunman stormed a nightclub in downtown Orlando, killing at least 50 people and severely wounding 50 more.

Pulse nightclub has a story behind it that makes it more than what it seems. Pulse nightclub has a story behind it that makes it more than what it seems.