French police investigating mysterious 2012 death of Russian businessman in England as an ‘assassination’

Alexander Perepilichnyy died suddenly while jogging outside his home in England, hours after returning from Paris. The cause of death was never determined but the case is one of 14 mysterious deaths of Russian exiles that are being re-examined with more scrutiny after the nerve agent attack against former spy Sergei Skripal. Mark MacKinnon reports from Paris