Watch the new and 7th season of BuzzFeed Unsolved: True Crime! www.youtube.com/playlist?list=PLD8iUdp33PqTsix2sGblEQZ8m5FQycC5D An ex-spy is murdered with an unusual poison. Was it an enemy, or his former employers? MERCH: We've got it! SHOP NOW: bzfd.it/2MDBk2d Watch on Amazon Instant Video: amzn.to/2nxA2q6 Watch on Hulu: hulu.tv/2FHqdMT Check out our BuzzFeed Original Series channel on Roku: bit.ly/2DUnOlE Credits: www.buzzfeed.com/bfmp/videos/62178 Welcome to the BuzzFeed Unsolved Network! This channel is your one-stop destination for all things mystery, conspiracy, supernatural, true crime, and everything in between. Subscribe here: bit.ly/2zuaR06. MUSIC SFX Provided By AudioBlocks (www.audioblocks.com) Licensed via Audio Network STILLS Duct Tape XXL smartstock/Getty Images Set of various paint splatters itchySan/Getty Images Finger Print Distressed ScottTalent/Getty Images vintage map of the world 1831 javarman3/Getty Images Vintage light bulbs choness/Getty Images XXXL dark concrete sbayram/Getty Images Device Used In Pizza Delivery Man Explosion Getty Images / Handout/Getty Images Teamsters Union President Jimmy Hoffa Bloodstain Set zizar2002/Getty Images Mi6 Badge Button AlanCotton/Getty Images Laboratory Equipment Magnilion/Getty Images High resolution digital render of Spain flag @ Mariano Sayno / husayno.com @ Mariano Sayno / husayno.com/Getty Images Rear View Of Man At Night Darko Labor / EyeEm/Getty Images A coffin bearing the remains of former R AFP / Stringer/Getty Images Pathology department in a hospital Team Static/Getty Images Close-up of Businessman Hitting Desk with Fist Beside Coffee Cup dem10/Getty Images Bottles with toxic labels Adam Gault/Getty Images Forensic evidence, close-up TEK IMAGE/SPL/Getty Images Businessman with moustache, typing on computer, posing in studio, portrait Photodisc/Getty Images Businessman Image Source/Getty Images Business person walking with briefcase in Rome piola666/Getty Images Crowd (People Are Complete- a Clipping Path Hides the Legs) Leontura/Getty Images Small business owner of beeswax and candles production. RuslanDashinsky/Getty Images Akhmed Zakayev Leaves Court Peter Macdiarmid / Contributor/Getty Images Russian Military-Industrial Commission meeting Mikhail Metzel / Contributor/Getty Images Chairman of The Public Inquiry Into The Death of Alexander BRITAIN-RUSSIA-BRITAIN-POLITICS-SPY-CRIME-FILES AFP / Stringer/Getty Images flag of Russia MiroNovak/Getty Images Three businesspeople in corridor by large windows Tom Merton/Getty Images I promise to be there for you whenever you need PeopleImages/Getty Images Marina Litvinenko on Sunday AM 3rd June 2007 Jeff Overs / Contributor/Getty Images Editorial and publishing complex 'Izvestia'. Pushkin Square, 5, Tverskaya Street. TatianaMironenko/Getty Images Evidence bags and number tags in courtroom Hero Images/Getty Images File Folder Made of 100 Percent Recycled Fiber With Document smartstock/Getty Images Silhouette of a Businessman Standing Behind a Frosted Glass Window in An Open Plan office Receiving a Bribe From Another Businessman James Lauritz/Getty Images Litvinenko anniversary Stefan Rousseau - PA Images / /Getty Images Kremlin in Moscow at Sunset Twilight Russia Mlenny/Getty Images files in a archive Nikada/Getty Images In bad shape CHRISTIANCHAMPAGNE/Getty Images Destroyed industrial buildings Ignatiev/Getty Images ruins harmpeti/Getty Images Lawyer leaning on table in chambers Robert Daly/Getty Images Commercial Kitchen Lebazele/Getty Images Chef or waiter in restaurant carrying tray of food kali9/Getty Images Businessman using cell phone in office Sam Edwards/Getty Images Friends And Bullies A-Digit/Getty Images Copy space. Wet creased white towel on ceramic floor in bathroom. Ceramic tile warm colors. For background. Автор/Getty Images A huge modern bathroom with two sinks, shower and a tub chuckcollier/Getty Images High Angle View Of Wineglasses With Plates And Cutlery Arranged On Dining Table At Restaurant Abdul Razak Latif / EyeEm/Getty Images Three black aircraft seats looking out of the window Csondy/Getty Images Luxurious sofa in bar Kyle Monk/Getty Images Set of triangle yellow warning sign hazard dander attention symbols chemical flammable security radiation cau