At least 4 people are dead and seven injured after a gunman opened fire during the Southeastern Qualifier for the Madden NFL Championship Series for Madden NFL 19 in Jacksonville, Flordia.

The gunman, who killed himself, has only been described by police as a "white man." There are some reports he targetted fellow players after losing the game

A Livestream on Twitch captured the sounds of the man opening fire.

Shooting at the Madden Tournament #DramaAlert @KEEMSTAR pic.twitter.com/hM49nqePiU

— Ninkat (@Ninkat_) August 26, 2018

Prayers to all those affected.

Update: Police have a (dead) suspect:

Local sheriff identifies shooter in #JacksonvilleLanding massacre as David Katz, 24, of Baltimore, MD. Katz, known as “bread”, won the Madden 17 Bills tournament at @716FoodandSport in Buffalo. @WGRZ pic.twitter.com/TKmcfZn5ap

— Michael Wooten (@wgrzMichael) August 26, 2018

Jacksonville authorities now confirm that the video game competition shooter was David Katz, 24 of Baltimore. Federal authorities are inside his home right now: https://t.co/ZRLkbb7wdk

— Justin Fenton (@justin_fenton) August 26, 2018