May 8, 2015 Atlanta - NTSB Safety Investigator Eric Alleyne (center) and other officials investigate on I-285 at Peachtree Industrial Boulevard, where four people died aboard a small plan on Friday, May 8, 2015. Traffic was shut down in both directions. Three men and one woman were killed in the crash, according to Channel 2 Action News. The National Transportation Safety Board is in charge of the investigation and will determine probable cause. HYOSUB SHIN / HSHIN@AJC.COM