Training, planning and having access to resources were key in handling a daylong standoff in one of the city’s business districts, local officials said. “It was a complicated incident that involved a barricaded criminal suspect who had displayed assaultive behavior toward our officers,” said Matt Rokus, deputy police chief, referring to Za Vue, who eventually was found dead inside the building at 301 Water St. “He had access to a firearm in that building … (and) he could have been armed prior to entering,” Rokus said. “Then he started a fire ...” The fire and the smoke it generated made it unsafe for officers to enter the building, Rokus said. But a potentially armed suspect also made it unsafe for firefighters. “We do a lot of training throughout the year,” Rokus said. “This was a new scenario for us. It stresses the importance of working well with other agencies.”