Investigating officers have also issued a public appeal....
Investigating officers need information, witnesses, and footage....
The need for O-type blood "remains critical"....
The appeal follows the emergence of latest video footage....
She was last seen on Monday evening....
Authorities are growing increasingly concerned....
A truly awful incident....
GMP believes the incident was a "targeted attack", with no wider threat to the ......
Investigation officers are treating this as a "targeted incident"....
