Five northern Wisconsin men entered not guilty pleas to charges they conspired to kill a man.  Twenty-six-year-old Curtis Wolfe, 28-year-old Evan Oungst, 19-year-old James Lussier, 26-year-old Joseph Lussier and 27-year-old Richard Allen made Iron County Circuit Court appearances Wednesday.  They are accused of participating in the fatal shooting of 25-year-old Wayne Valliere Junior of Lac du Flambeau.  Valliere was shot eight times, including two shots to the head.  He may have been killed during an argument over a stolen meth pipe and a suspicion by the others that he was a police informant.