A Decatur resident witnessed the aftermath of a massacre at a gay nightclub in Orlando, Fla., that claimed the lives of over 50 people and wounded many more.

The Atlanta Journal Constitution reports that witness Nic Hornstein is a Decatur resident. According to his Twitter account, he was on the roof of a tattoo shop near the Pulse nightclub. He posted video and pictures throughout the June 12 incident.

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Hostage situation at #pulse nightclub in #Orlando. Front row seats on the roof pic.twitter.com/jrkMgEmcHO

— Nic Hornstein (@nichornstein) June 12, 2016

 

Police K9s outside of #pulse nightclub hostage situation in #Orlando pic.twitter.com/tYDh9nEnvX

— Nic Hornstein (@nichornstein) June 12, 2016

Armed task force walking around #pulse nightclub in #Orlando during hostage situation. pic.twitter.com/ZUxTwKg5F9

— Nic Hornstein (@nichornstein) June 12, 2016

Possible hostages released in #pulse nightclub shooting in #Orlando? pic.twitter.com/JhMERt1AVJ

— Nic Hornstein (@nichornstein) June 12, 2016

Crisis negotiation unit showing up at the #pulse nightclub hostage situation in #Orlando pic.twitter.com/MKjMtdPQpS

— Nic Hornstein (@nichornstein) June 12, 2016

Gunfire exchanged at #pulse nightclub hostage situation in #Orlando. pic.twitter.com/qeF0s6Ien6

— Nic Hornstein (@nichornstein) June 12, 2016

SWAT debriefing at #pulse night club shooting in #Orlando pic.twitter.com/zAXudrP5TT

— Nic Hornstein (@nichornstein) June 12, 2016

FBI on the scene of the #pulse nightclub shooting in #Orlandopic.twitter.com/GtPjqLYDhY

— Nic Hornstein (@nichornstein) June 12, 2016

Atlanta INtown reports that mourners held a vigil at 10th Street and Piedmont Avenue in Midtown Atlanta on the evening of June 12, writing that Midtown is “considered the heart of Intown’s LGBT community.”