Kenosha school district says potential school shooting thwarted by staff; teen arrested NBC NewsWisconsin school staff hailed as heroes for stopping ‘suspicious’ teen with bags from entering elementary campus CNNVideo Teen believed to be armed narrowly stopped from entering elementary school ABC NewsKenosha police arrest 13-year-old in school shooting attempt WISN MilwaukeeKenosha Police seeking "suspicious person" last seen at Roosevelt Elementary School Kenosha News