At debate, Walz says his teenage son witnessed a shooting: ‘Those things don’t leave you’ USA TODAYWalz stuns internet with VP debate gaffe: ‘I’ve become friends with school shooters’ Fox NewsWhat We Know About Rec Center Shooting Witnessed by Tim Walz’s Son NewsweekVP candidates asked about convictions of Oxford school shooter’s parents during debate Detroit NewsVance and Walz both talked about being dads when asked about gun violence POLITICO