Jones, who was nicknamed the "White Widow", is believed to have publicized a list of American military personnel to be targeted by ISIS militants, led a group of female terrorists, and acted as a top recruiter online.
Sky's defence correspondent Alistair Bunkall said: "UK defence sources have told Sky News they believe the strike was successful but question some of the detail being reported in the media".
Jones regularly posted progaganda on social media (using a number of different accounts) but there has been a noticeable lack of activiy over recent months.
Jones became known as the White Widow after her British jihadist husband Junaid Hussain was killed in a U.S. drone strike in August 2015. Later married a computer hacker Gonad Hussein, who was killed in an attack by a drone in 2015.
At the time of his death, the 21-year-old from Birmingham had allegedly been planning "barbaric attacks against the West", including terror plots targeting "high profile public commemorations". "Quite frankly, it's good riddance".
In one conversation with an undercover journalist, Jones detailed the materials needed to make a bomb and said she could help construct a device remotely.More news: North Korea hackers stole South Korea-US war plans: Lawmaker
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MI6 spies were reportedly tracking the movements of Jones, who travelled with Jojo to Syria in 2013 to marry Hussain. A 2015 airstrike killed Hussain, and now experts say she died the same way, along with her 12-year-old son.
Later, Jones also images of her in a nun's costume with a gun and talked about her desire to behead Christians with a "nice blunt knife".
I guess that career didn't pan out for her, because she had converted to Islam, changed her name to Sakinah Hussain and moved to the Syrian Islamic State stronghold, Raqqa.
He said he would have preferred that Jones had faced trial, adding: "I represent a constituency that lost many people in 7/7 [the 2005 London bombings], and we remember what happened that day".
"When you interrogate someone, you get more information", he said.
Jones in particular targeted young girls to travel to Syria and become jihadi brides and her husband reportedly ran a hacking unit for ISIS. "We don't know for sure whether he was with her or not".