The Frisco Police Department said just after noon on Monday that all Frisco ISD campuses within city limits are secure following threatening emails sent to campuses earlier in the day. The threat was “determined to be non-credible,” Frisco PD said in a statement.
The department said it is still investigating the source of the threatening messages.
Frisco ISD said, “The secure status has been lifted districtwide. All students and staff are safe.”…