 A source tells ABC News the former president has spoken to family member of Cory Comperatore. The firefighter is killed at the Trump rally. His funeral is Thursday. The Secret Service says in recent weeks, security was beefed up for Donald Trump due to intelligence of an Iranian threat to assassinate the former president, but say there's no known link to Saturday's attempt. Trump has been a target by Iran after ordering the death of Iran's top general back then when he was president. Iran says it's chosen a legal path to hold Trump accountable.