This is sad. My sympathies to the victims and their loved ones. I would've been going nuts if my kids were there. I like what someone said as targeting the venue because of Ariana being US. I could see that being a motive. I also read that the date as well could have been a motive as Lee Rigby a British soldier was murdered by two extremists in 2013 on this day as well. I wonder how brain washed do you have to be to blow yourself up while killing innocent people. Am I the only one who wonders if these people are drugged and brainwashed to go kill themselves and innocent people? Its a real concern. I've come across  such happenings before where people are exposed to a drug and do things they would never have done otherwise. Makes me want to interrogate someone. I put six rounds from my pistol center mast penetrated their bullet proof vest once. I wondered if he was exposed to such a drug. I was prevented from any further action. My mate bashed the other guy. True stuff to think about.