THE 20 YEAR-OLD U-C-S-C STUDENT (WHO TOLD POLICE OFFICERS HE KILLED HIS MOTHER IN HER HAYWARD HOME), IS ALSO BELIEVED TO HAVE KILLED HER 3 CHIHUAHUAS. JOSEPH BADIALI MADE HIS FIRST APPEARANCE IN AN ALAMEDA COUNTY COURTROOM YESTERDAY. HE WAS CHARGED WITH MURDER, AND 3 COUNTS OF CRUELLY WOUNDING AN ANIMAL.