The shooter, David Katz, (right) was 24 years old. Photo via Twitter.

By Steve Neavling
Ticklethewire.com

Heavily armed FBI and ATF agents wearing bulletproof vests searched the Baltimore home Sunday night of the father of the man who opened fire at a video game tournament in Jacksonville, Fla., leaving three dead and 11 others injured.

Authorities identified the shooter as 24-year-old Baltimore resident David Katz, who killed himself. According to investigators, Katz was in Jacksonville, participating in a football video game when he opened fire shortly after 1:30 p.m. Sunday.

ATF and FBI agents arrived at the townhouse of Katz’s father around 6 p.m. and searched the home for about four hours, the ATF said at a press conference.

Authorities were tight-lipped about what, if anything, they found at the home on the 1200 block of Harbor Island Walk.