Use of high-tech tool to locate shooters may greatly expand in California under proposed bill. Los Angeles County Sheriff detectives investigate a shooting death in West Hollywood in 2015.

PITTSBURGH — A new tool that uses smartphones to help locate a shooter has been developed by researchers at Pittsburgh's Carnegie Mellon University. The system works to determine a shooter's ...

A clinical research professor at the University of Miami has developed a tool, roughly the size of an index card, that could protect victims during a shooting or other threatening scenarios ...