I'm Maeve McLanagan and this is the tip-off. On this podcast, we take you behind the scenes of some of the UK's best investigative journalism.

Episode by episode, we'll be digging into an amazing investigative scoop hearing from the journalists

behind the work as they tell us about the leads the dead ends and how they got their story out

picture the scene it's a rainy winter morning and jane bradley is stood on a doorstep in west london

at her feet is a

garden gnome. Another clue in a puzzle she is unraveling. She is about to knock and tell a mother

that she suspects her son is one of the world's most wanted terrorists. But that comes later. As ever, it starts with a tip-off.

Obama, have yet a game from your actions, can get another American citizen,

suggest that your missiles continued to strike out.

In 2014, the filmed murder of journalist James Foley shocked the world.

Little was known publicly of his executioner, a masked man speaking in a British accent,

who became dubbed as jihadi John.

Until...

The man in the mask is one of the world's most wanted, and now authorities know his name.

A story broke in a Washington Post.

Journalist Adam Goldman had discovered the man's identity.

Okay, well, this originally began when Jim Comey said that he knew the identity of jihadi John, you have a name?

I have it in my head.

But you're not willing to share it.

I am not.

You know, my editors said, well, Comey knows the name and you should be able to get the name.

So for months and months and months, we piece together Jihadijan's identity.

...