The court was also told of a previous allegation that Williams threatened and assaulted Tania in April 2019. The investigation was discontinued when she withdrew her complaint, police said.
Tributes poured in after Tania’s murder and more than 200 people attended her funeral.
Rector of Thorpe St Andrew Church, Reverend James Stewart, said Tania “very much became part of our church community” and the news of her death was “very, very devastating”.
The Oxfam charity shop in Magdalen Street, where she volunteered, described her as “the sort of person you instantly remembered”.
In a heartfelt Facebook post, liked more than a thousand times, they said: “Tania was wonderful: the kindest, most caring person you could meet.
“She was so full of positive energy, warmth and joy that it is very difficult to comprehend what has happened.”
After the court hearing, Senior Investigating Officer Det Insp Sam Pontin said Tania’s family had “shown remarkable strength and dignity throughout this investigation and trial”.
“They have supported the investigation from the very beginning and have endured the extremely difficult process of hearing the evidence presented in court,” police added.
Williams is due to be sentenced on 25 September.
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