Yes, it is. The famed Independence Hall is right in the center of town, and it is where both the Declaration of Independence and the U.S. Constitution were formed and adopted. Many Revolutionary War soldiers were once buried in the large Washington Square park adjacently behind it. Benjamin Franklin lived a couple of blocks away and is buried nearby. The Liberty Bell used to be inside it, but as throngs of tourists began to wear out the original pine floors, it was moved to an outdoor pavilion in the 1980s or 90s. Here are the back and front views:
Here is the Assembly room where the drafting and discussions took place (that's a National Park Service Ranger at right):
And here is the front view of Independence Hall as seen through the plexiglass pavilion where the National Park Service has now placed the Liberty Bell:
It's worth noting that the murder which is the subject of this thread took place in a residential area about 3 miles west as the crow flies from the Independence Hall and colonial section. But Philly also has the reputation, among its permanent residents, of being "the biggest small town in the world" — people are tight-knit. The first week I arrived there for college, my advisor told me, "Don't mess around in Philly. Everyone knows everyone here."