Kabir and Dipika's case reaches its dramatic conclusion. And, while officials say they're not keeping track of how many shaken baby cases there are in Australia, an unlikely duo – the loved ones of people imprisoned for shaking – work night and day to find out. 

For exclusive content and additional reporting on the case, available to subscribers of The Age and The Sydney Morning Herald, visit theage.com.au/podcast/diagnosingmurder. Subscribe now to theage.com.au or smh.com.au to access the special Good Weekend investigation.