What do we know, and not know, about Tyler Robinson - the 22 year old man who has become the main suspect in the shooting of the conservative activist and influencer Charlie Kirk? After a 33 hour manhunt, investigators say Robinson’s father recognised him from images released to the public, and persuaded his son to hand himself in. Sarah, Marianna and Justin unpack the various theories around Robinson’s possible motive, how the case is developing and the continuing political fallout from the shooting.

Also, in the week of the US president’s historical second state visit to the UK we get a behind the scenes insight into Trump’s first visit, with the former US Ambassador, Lord Kim Darroch, who helped organise it. How are decisions made over itinerary and agenda? How much politics is likely to be discussed? And as Keir Starmer explains his decision to sack the current ambassador, Lord Mandelson, did he make the right decision at the right time?

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This episode was made by Rufus Gray and Alix Pickles. The technical producer was Chris Murphy. The series producer is Purvee Pattni. The senior news editor is Sam Bonham.

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