local media.

Guenzel, who had served in the police for 30 years, retracted a confession he initially made to detectives soon after Stempniewicz's killing in which he said that he had cut his throat.

(Image: GETTY)

Investigators have been unable to determine the cause of death definitively because of the poor condition of the corpse.

They have, however, been able to ascertain that the pair had extensive contact online and by telephone before finally arranging their date on 4 November 2013.

The video Guenzel made was played during the trial, at one point showing him covered in blood while mutilating the corpse. He can be heard murmuring: "I never thought I would sink so low."

The defendant is reported to have broken down when the footage was shown, telling presiding judge Birgit Wiegand thatand Use of Laboratory Animals published by the US National Institutes of Health (NIH Publication No. 85-23, revised 1996) and with approval of the Animal Ethical Committees of the University of Otago, New Zealand, British Home Office and the University of Bristol, United Kingdom. Human right atrial tissue samples were collected from the patients undergoing on-pump coronary artery bypass graft surgery after written consent which conforms with the principles outlined in the Declaration of Helsinki and was approved by the Human and Disability Ethics Committee of New Zealand.

In vivo studies
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### Mouse model of STZ-induced diabetes

Diabetes was induced in CD1 mice of both genders (Charles River, UK and HTRU, NZ) by injection of streptozotocin (STZ; 40 mg/kg body weight i.p. per day for 5 days). Age-matched animals that received