 that there's political violence or violence in America like this is just unheard of. It's just not appropriate. But now the Secret Service on the hot seat, the House plans a hearing to ask why the rooftop on that building near the rally was left unguarded. Mark Garrison, WBT News. There are reports this afternoon that the suspected shooter, 20 years old, had explosive devices in his home and car, and he lived not far from where the campaign rally was, in a suburb of Pittsburgh.