More Spokane police officers could face criminal charges over the city’s handling of the fatal confrontation with unarmed janitor Otto Zehm, with newly filed court documents indicating a federal probe is continuing into potential obstructions of justice. The new documents filed by Assistant U.S. Attorney Tim Durkin contain new details about the confrontation that suggest police and city officials have misled the public and others about what happened the night of March 18, 2006, when Zehm was beaten with a police baton, shocked with a Taser, and hogtied by a half-dozen officers before lapsing into a coma and dying two days later.