Fresh prison term comes on top of 24-year sentence Dawson received in 2022 for murdering wife Lynette Dawson in 1982

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Former teacher and convicted wife-killer Christopher Dawson has received a three-year sentence for having unlawful sexual activity with one of his students four decades ago.

The now 75-year-old groomed his victim and took advantage of her vulnerability due to troubles in her home life, Sydney judge Sarah Huggett found on Friday.