"Jim, I do not regard the Daily Mail as a reputable news agency."
Course you don't Keith - when it doesn't firt your own personal agenda
The story appears elsewhere - I chose the Daily Mail as the newspaper least likely to invent a story that contradicts the establishment line
The killer's family and friends are far more likely to understand his motivation that that of outsiders who, if your claims are correct, underfunded and reduced (no comment on that yet) security forces dealing with thousands of "suspects".   
That the death of his mate might of been "gang related" (no evidence of that) is immaterial - the reason given was that he thought it was racist
You carefully tip-toe around that the slaughter that is going on in Syria was also mentioned - too close to home or an apologist of Assad's atrocities.
That slaughter is not in any way an excuse for the Manchester slaughter, but it does help to put the whole terrorism issue into context
It is Britain and the West's participation in and inaction that has led to the rise of Isis and it is long overdue that was recognised and dealt with - until it is, these attacks will be given an excuse to continue.
Jim Carroll