A Shabbat Service at Temple Beth Am

Last night we attended a service at Temple Beth Am. It was billed as a service of unity, pride and commemoration in light of the attack on the Tree of Life synagogue in Pittsburgh. Having never been to any service in a synagogue before in my life, I was very impressed with the service itself. Lots of singing and good vibes coming from the speakers. Other religious groups could learn a lesson from this type of service. It was a jammed packed house and the service ended with the crowd singing Woody Guthrie's "This Land is your land". 
A few of the usual suspects were there, noticeably missing was the majority of city councilman. But the Mayor was there with her body guard within feet of her at all times.  It makes me wonder what reasons the Mayor feels it's necessary to bring a body guard into the synagogue. Does she fear for her life? Have there been threats against her life? Since becoming a city, have things gotten so bad that our elected officials need protection? 
I understand the notion that a horrific event can occur in any place in our lives and the need to protect those who are soft targets for the extremists, but I never thought I would see an armed body guard in a house of worship.