Thomas Evans - who is believed to have died fighting for al-Shabaab in Kenya - was a "normal teenage lad", his family said earlier this year.
ITV News UK Editor Rohit Kachroo reports:
Family of Thomas Evans spoke movingly about their "normal teenage lad" at Home Affairs Select Committee earlier this year
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The MP died at the age of 84 on Sunday.
He held several shadow cabinet posts during his parliamentary career, but had not been active in the Commons in recent months.
Campaigners say that the Government should continue to pay for the scheme.