Mark Dennis went from top silk and charity 'big boss' to accused predator

Key points

• An ABC investigation has detailed allegations that Mark Dennis, a Sydney criminal defence barrister, gained power within the children's charity Sunrise Cambodia and had access to vulnerable children. Dennis was arrested after child abuse material was allegedly found on his devices when he returned from Cambodia in January.
• He was released on bail and was later found dead at his home in February.
• Former staff say they saw troubling behaviour but felt unable to report it because Dennis was a major sponsor.