I keep repeating about what the neighbor to Jared Loughner said:
Jared went from great jazz player to mass murderer in two years.
How that happened is the real story and someone will tell it one day.
Age nineteen is a difficult year for everyone approaching adulthood. Calling them “sophomores” isn’t an accident; it is a time of foolish activity. People who are going to exhibit mental/neurological problems often hit the wall in this year.