What to know about the attempt on Trump's life and its aftermath

The FBI is still trying to determine a motive behind the attempt to assassinate former President Donald Trump at a Pennsylvania rally. The former president says that a bullet pierced his upper ear. In the meantime, a former fire chief who was killed is being remembered as a ‘man of conviction.’ Two other people were wounded. The 20-year-old man who authorities say carried out the attack is believed to have acted alone. Meanwhile, the tone of this week’s Republican convention in Milwaukee could shift in the wake of the violence. It starts today and runs for four days.