Episode 4
Barrister Robert Rinder tells the story of Frances Molloy, whose 18-year-old son was killed in a coach crash in 2012, leading her to fight for changes to the law, making it illegal for buses and coaches to use tyres that are more than 10 years old. He also examines the 1973 case of David McGreavy, who murdered three children he was supposed to be looking after.
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