EXCLUSIVE: Author David Whelan says two kinds of bullets used to kill Lennon

He thinks this bolsters his theory that second shooter was involved in the killing

Two different guns may have been used in the John Lennon shooting, according to a British writer investigating the case.

Author and TV producer David Whelan has unearthed official records showing for the first time that two different types of bullets were removed from the music legend's body following his fatal shooting on December 8, 1980.

Mr Whelan believes a 'second shooter' could have been involved in the murder of Lennon and has now uncovered dramatic new evidence supporting his case.