Deborah Haynes, defence editor for The Times newspaper, has told ITV News that the Afghan soldier suspected of killing two British soldiers had had a 'clean record'.
Speaking from Lashkar Gah, she said he would have had "plenty of opportunities in the past to unload his weapons" on Western troops, and that sources tell her he must have "flipped".
More top news
Donald Trump has blamed radical Islamic terrorism for UK's 13% rise in crime.
Theresa May said she is "ambitious and positive" for a Brexit deal as EU leaders gave the go ahead for preparations for second phase talks.
Merseyside Police have launched an investigation after crowd trouble at Goodison Park - during which a fan appeared to attack a player.