Posted on Tue, Nov. 04, 2003 WHEN DID COMMISH KNOW? JOHNSON INSISTS HE WASN'T AWARE IN '01 OF FBI PROBE By Jill Porter porterj@phillynews.com WHAT DID he know and when did he know it? That Watergate-era question has now surfaced in respect to Police Commissioner Sylvester Johnson and the federal investigation involving Mayor Street. According to reliable sources, Johnson knew as far back as 2001 that the FBI was investigating possible corruption in the mayor's office - because he told then-Police Commissioner John Timoney and mentioned it at a meeting of other deputy police commissioners. "That is totally untrue," Johnson...