It didn’t take long for Jonathan Langdon to determine that the man standing in front of him on the sidewalk might be trouble.
For one, the man was holding a hammer. And when the stranger began trying to have a conversation with Langdon, his speech was erratic and punctuated with personal questions.
It was Saturday morning around 8 a.m. at North Interstate Avenue and Graham Street, and Langdon, 49, was smoking a cigar on the sidewalk within walking distance of his apartment…