Brady said the fourth victim was being treated at an Orlando hospital. Her condition was not immediately released.
Casselberry is about 15 miles northeast of Orlando.
In October 2011, police say an angry ex-husband donned a bulletproof vest before killing his ex-wife and six of her fellow stylists and patrons at a Southern California hair salon. He also is accused of killing a man in the parking lot. Scott Dekraai is awaiting trial on murder charges.
Celebs Who Break-Up to Make-Up
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