Loved ones of Australian woman question backpacker Tobias Pick's manslaughter sentence

Jingai Zhang collage

Jingai Zhang was strangled on Boxing Day 2020 in Launceston. (ABC News/Supplied)

In short:

People who were close with Tasmanian woman Jingai Zhang have cast doubt on her killer's version of events.

An ABC investigation has found Tobias Pick's ex-girlfriend had accused him of physical abuse — including on the day he killed the 49-year-old sex worker.

What's next?

German police have opened what's known as mirror proceedings, meaning authorities there are examining the crime.