GMP has called this a "harrowing investigation"....
He pleaded guilty to causing criminal damage during the disorder....
Stephanie Heaps did not declare any links to criminals or criminal activity....
GMP says he "abused his position as a police officer" and is a "disgrace" ......
Lee Francis Burns will spend a minimum of 20 years in prison....
He has also been handed an indefinite Metrolink ban....
The 17-year-old has now been named as Jordan Rance....
A truly horrific incident....
The 21-year-old will spend three years behind bars....
