WARNING: Graphic — Victim's Snapchat Captures Shooting Inside Pulse Nightclub

One of the Orlando shooting victims captured initial gunfire on video in Pulse nightclub early Sunday morning, sharing the footage just minutes before she died.

Amanda Alvear had been posting videos to Snapchat throughout the evening, most of which featured a fun-filled night of dancing and drinking with friends.

But her final video quickly turned into tragedy. During the clip, Alvear is seen clutching her phone as gunshots ring out in the background.

The Snapchat cuts just after the 25-year-old manages to say "shooting" to her followers. Her brother, Brian, later posted the video to Facebook.

"People keep asking? Yes this is Amanda, she was creating a Snapchat story though the night this is the last time anyone saw her, after this she did receive and answer one call," he wrote along with the video.

"A lot of hostages were in the bathroom, last I heard that's where she was," he later told the Ledger .

As RadarOnline.com previously reported, shooter Omar Mateen opened fire at Pulse nightclub about 2 a.m. Sunday, killing at least 50 people, and injuring 53 using an assault rifle.

Mateen called 911 during the brutal attack to pledge allegiance to ISIS and even made mention of the Boston Marathon bombing, CNN reports.

Police were able to shoot and kill the 29-year-old after a three hour standoff, during which time he kept people trapped inside the club, including Alvear.