Security looked at roof during preparations, source tells ABC News
The roof where the suspected gunman fired shots at former President Donald Trump had been surveyed during security preparations for the event, a law enforcement source told ABC News.
The roof was empty during those security preparations, the source said.
![PHOTO: Illustration](https://i.abcnewsfe.com/a/f0f9f913-fb31-4748-8a33-37cc1158d649/ABC_TrumpAttemptMap_v04_LY_1720930114697_hpEmbed_1x1.jpg)
As reports of suspicious activity came in, a search was initiated, the source said. It was unclear how the suspect climbed onto the roof to quickly get off shots before a Secret Service counter-sniper located and killed him, the source said.
Officials continue on Sunday to investigate whether the dead suspect was connected to domestic extremists, the source said. The early investigation turned up no ties to international terrorism, the source said.
-ABC News' Pierre Thomas and Luke Barr