FBI says alleged Georgia school shooter and father were questioned last year

The FBI says the suspected shooter who killed two students and two teachers Wednesday at a Georgia high school was questioned by Jackson County sheriff officials last year after they received anonymous tips about online threats to commit a school shooting. The suspected gunman's father was also questioned, but at the time, authorities determined there was no probable cause for arrest. CBS News' Dave Malkoff has more. PLEASE FOLLOW MY CHANNEL-THANK YOU!