Who is Austin Tucker Martin? Little known about Mar-a-Lago intruder, echoing past Trump security scares

The North Carolina man shot and killed after breaching the north gate at President Donald Trump's Mar-a-Lago home was described as a "good kid" and had no prior run-ins with the law, but his background remains shrouded in mystery as authorities investigate. 

Austin Tucker Martin, 21, was killed on Trump's property around 1:30 a.m. Sunday, Feb. 22, by a Palm Beach County sheriff's deputy and two Secret Service agents, according to Sheriff Ric Bradshaw. Fox News confirmed that he walked onto...