This attack was meant as a warning to the Russian population. Don't f**k with big daddy Putin or you won't be safe no matter where you end up. Tow the line or else..
I say this regular mate, all the knowledge man has ever gained is at your fingertips and availible in seconds, yet the social media side of it has led to the biggest mass dumbing down of society in human history..
Mindhunter is a great series on Netflix, based on a book from an FBI agent who was one of the pioneers of forensic psychology back in the 70's. The interviews with serial killers are based on the real life transcripts of interviews they done. Some f**king real lunatic people out there!