Police say Monday's holiday mass shooting had been planned for weeks.
Seven people died and dozens were injured as Robert Crimo III fired as many as 70 rounds into the crowd from a Highland Park rooftop. The shooter accessed the roof via a fire escape ladder, then fled the scene wearing women’s clothing.
An AR-15-type weapon was used n the assault, but police say Crimo bought the rifle used in the deadly shooting legally — along with four other firearms.
Joining Nancy Grace today:

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