Line of Duty fans have been left convinced that main character DI Kate Fleming (Vicky McClure) is going to be killed off in the next episode.Kate has found herself further embroiled in the dark goings-on over at the Murder Investigation Unit on Hillside Lane, where corrupt officers Jo Davidson, Ryan Pilkington and Ian Buckells work.She and Steve have worked out that the dangerous Ryan, who is secretly part of an organised crime group, has managed to infiltrate the police, as his crime record has ignored.But as Kate gets closer to the truth about Jo and Ryan's grisly pasts, fans have spotted a huge clue that could have revealed she'll get killed off.In a write up of episode six on the Radio Times, the synopsis reads: "As AC-12 struggle to.
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