New details on White House shooting suspect

Investigators are piecing together information about Nasire Best, the suspect who was shot and killed by the Secret Service after allegedly opening fire at a security checkpoint. ––– Subscribe to ABC News on YouTube: https://abcnews.visitlink.me/59aJ1G ABC News is your daily source of breaking national and world news, exclusive interviews and 24/7 live streaming coverage. https://abcnews.com Download the ABC News app for the latest headlines and alerts: https://abcnews.com/devices Connect w