Where the state can present sufficient evidence to demonstrate that a testifying witness was killed as part of the same conspiracy for which the defendants are accused or to prevent the witness from testifying, the forfeiture-by-wrongdoing exception to the general rule against hearsay may permit the witness’ testimony to be admitted.The 1st District Appellate Court affirmed a decision by Cook County Associate Judge Lawrence E. Flood.On April 8, 2009, two men wearing hoodies and armed with handguns, later identified …