Lawyers for Civil Rights is suing the Boston Police Department and the Suffolk County district attorney’s office for withholding police footage that allegedly shows an officer fatally shoot a Dorchester man. The nonprofit group said its lawyers have repeatedly attempted and failed to obtain body camera and dashboard camera footage that allegedly shows Officer Nicholas O’Malley's lethal exchange with Stephenson King Jr. in March. Victoria Miranda, a senior attorney at Lawyers for Civil Rights, said she's filed numerous public records requests for the footage. That's not a justifiable reason to deny the public access to that body camera footage,” Miranda said. But, she noted, body camera footage, captured in a public place with public witnesses, should not be construed as an internal document.