Lee Francis Burns will spend a minimum of 20 years in prison....
The tragic incident happened at around 4pm this past Saturday (18 May)....
He has also been handed an indefinite Metrolink ban....
The 17-year-old has now been named as Jordan Rance....
He has been remanded in a secure mental health hospital....
Two men are currently under arrest on suspicion of murder....
Detectives have reissued their urgent appeal to the public for information....
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Detectives have now issued a public appeal to assist with ongoing investigations....
