St. Louis Metropolitan Police Chief Sam Dotson has his hands full. In just the past week, the city was shaken by a spate of horrific crimes that included two separate shootings that killed a young mother and toddler. Several aldermen have called for his resignation. But while Dotson has gone on the offensive to defend himself and his department, he sure didn't do himself any favors Thursday when he Tweet-bragged about how the SLMPD's new mobile app notched its first arrest — for panhandling.
Update, 12 pm: In an interview, Dotson filled us in on the details of the panhandling arrest.…