KIRKWOOD, Mo. (AP) - A gunman carrying a grudge against City Hall left a suicide note on his bed warning "The truth will come out in the end," before he went on a deadly shooting spree at a council meeting, his brother told The Associated Press Friday.

Arthur Thornton, 42, said in an interview at the family's home that he knew his brother was responsible for the killings when he read the one-line note.

"It looks like my brother is going crazy, but he's just trying to get people's attention," Thornton said, explaining he believed the note reflected his brother's growing frustration with local leaders.

After storming the meeting and killing five people Thursday night, Charles Lee "Cookie" Thornton was fatally shot by law enforcers. Friends and relatives said he had a longstanding fued with the city, and he had lost a federal free-speech lawsuit against the St. Louis suburb just 10 days earlier. At earlier meetings, he said he had received 150 tickets against his business.