>> order of speakers will be mayor dyer, rick scott, pam bondy, police chief, sheriff demings and ron hopper with the fbi. after this briefing, we will only have briefings as significant events occur today and tomorrow will provide additional updates. >> this is probably the most difficult day in the history of orlando and i want to thank all of our law enforcement professionals, our health professionals, victims advocates, counselors who have come to the aid of our community. while it is difficult for all of us, it is the most difficult for those families that are still waiting for information on their loved ones. and it's difficult as that as, i ask for patience and compassion and love. pulse remains an active crime scene and law enforcement is working the scene as efficiently and as diligently as they