New York State Police officials are notifying district attorneys across the state that evidence in criminal cases may have been compromised by a forensic scientist who committed suicide last month after auditors discovered that he had not followed proper procedures in some cases, officials said Tuesday. The scientist, Garry Veeder, worked at the State Police crime lab for more than 30 years analyzing so-called trace evidence, such as fibers, physical material and impressions left at crime scenes. The agency is reviewing his work going back at least a decade and cannot yet say how many cases could have been compromised....