Line of Duty fans were left speechless on Sunday night after they were faced with another nail-biting cliffhanger at the end of the show.Many viewers were already on edge from last week’s episode due to AC-12 officers administering a forensic sweep of Farida Jatri’s house, which allowed them to discover DCI Jo Davidson’s (Kelly Macdonald) DNA.The DNA was later partially matched to a "nominal" stored on other police databases that was apparently a blood relative.After episode four’s cliffhanger, fans had already been speculating on who Davidson’s DNA could be a match for.Due to the fact that Davison tried to hide her family history since the first episode, many Line Of Duty fans believed that it may be someone who has strong connections with.
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