He said he was heartened that the suspected killer was captured, "and I expect him to be brought to justice," Nutter said. "But this is the reality that takes place on the streets of Philadelphia. "
Philadelphia Fire Commissioner Lloyd Ayers said the death of Cassidy would serve as a "rallying call" to deal with violence in the city.
"We understand the meaning of working together, mourning together," Ayers said. "That's the message I took from today. We can do this. Coming together, we have an opportunity now. "