Hunter Biden helped devise plan to 'close down' Viktor Shokin's investigation into Burisma, emails reveal
- Emails bolster claims by ex-Ukrainian Prosecutor Shokin that Hunter and then VP Joe Biden had him fired over probe
- Hunter was warned in 2014 that Burisma founder Mykola Zlochevsky was under investigation in Ukraine
- Hunter then enlisted the help of his law firm Boies, Schiller, & Flexner, and pitched in with advice on gaining 'intelligence' on prosecutor's office