It is unclear whether Nordo's alleged conduct might affect Powell's trial, scheduled to start Sept. 5. Powell is accused of fatally shooting Eliezer Mendez, 22, on the 2000 block of East Stella Street on May 19, 2015. Sources familiar with the case say that the evidence includes surveillance video and that at least two other witnesses may implicate Powell, including one who has pleaded guilty to participating in the crime.