Wed 01 Jan 2007US police held over Katrina murderSeven police officers charged over a shooting in Hurricane Katrina's aftermath surrendered themselves to the city jail yesterday, amid cheers from a crowd of supporters.Six of the men remained in custody last night, charged with at least one count of murder or attempted murder in the September 4th, 2005, shootings on the Danziger Bridge less than a week after the hurricane hit. Two people died and four people were wounded.