Article Photos: Police: NJ boy, 6, killed saving sister in attack



  A makeshift memorial for the slain Dominick Andujar sets on his front porch, Tuesday, Sept. 4, 2012, in Camden, N.J. Authorities say 31-year-old Osvaldo Rivera killed 6-year-old Andujar and critically injured his 12-year-old sister in Camden early Sunday. (AP Photo/Matt Rourke)

A makeshift memorial for the slain Dominick Andujar sets on his front porch, Tuesday, Sept. 4, 2012, in Camden, N.J. Authorities say 31-year-old Osvaldo Rivera killed 6-year-old Andujar and critically injured his 12-year-old sister in Camden early Sunday. (AP Photo/Matt Rourke)