The officials said the person suspected of opening fire and killing multiple people in the "racially motivated" attack is also dead

"This shooting was racially motivated and he hated Black people," Jacksonville Sheriff T.K. Waters said at a news conference, reported CNN

He said the shooter, who is White and shot himself after the attack, left behind evidence that outlined his "disgusting ideology of hate" and his motive in the attack

Jacksonville Mayor Donna Deegan said the suspected shooter was barricaded in the store after opening fire and leaving "multiple fatalities," State Senator Tracie Davis told CNN

Jacksonville is located in northeast Florida, about 35 miles south of the Georgia border. The area near the Dollar General store features several churches and an apartment building across the street