A bomb threat at an Englewood WalMart yesterday has investigators on the trail of whomever made the call today. The WalMart on South McCall Road was evacuated shortly after the store received a telephoned bomb threat around 9:30 yesterday morning. Charlotte County deputies searched the store and the area but found nothing. The store was re-opened a little before noon. Now, detectives are searching for information about the caller and are asking for any information that might help identify the person. Call Crime Stoppers at 800-780-TIPS.