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Graphic body camera video and a bloodstained rock prosecutors say was used in a brutal cliffside attack were shown to jurors Wednesday as the attempted murder trial of Hawaii doctor Gerhardt Konig entered a critical new phase.

An evidence specialist and responding officers testified on the fourth day of Konig's trial, walking jurors through the alleged attack and the immediate aftermath, including video showing Arielle Konig bloodied and disoriented.

The video played in court showed people helping Arielle, who had blood dripping down her face and a bandage on her head after she was allegedly attacked by her husband.…