A law enforcement expert weighed in following the tragic mass shooting at a small Georgia high school that left two students and two teachers dead and wounded nine others on Wednesday.
Matthew Fagiana, a retired police sergeant and law enforcement consultant, told Fox News Digital that responding officials are zeroing in on the 14-year-old suspect's past and motive at the start of the investigation.
"Things such as the timeline of the incident. A chronological history of the suspect leading up to the shooting...