STOCKTON — A 25-year-old woman was pistol-whipped into unconsciousness Sunday morning, leading to the arrest of a man connected to a cache of illegal weapons, police reported.Bail for the suspect has been set at more than $16 million, according to jail records.The victim and her assailant were involved in some type of physical altercation in the 4700 block of Grouse Run Drive near West March Lane just after 8 a.m.