David Katz, the suspected gunman of the shooting in Florida on August 26, 2018. (Photo:AP/VNA)

David Katz, the suspected gunman, after losing the tournament, opened fire at other people before killing himself, local police said.

Meanwhile, eight people were killed in a fire in Chicago on Sunday morning, including six children, in what officials said was the deadliest city fire in a decade. Two more children are in critical condition.