Holly Garnett died by suicide on Tuesday, 13 October 1998 at the age of 29. She was buried on Thursday, 22 October 1998 at Castle-Brook Memorial Gardens. She died partly due to the plight of her older brother, Martin Garnett (born 1966), who is a convicted drug trafficker and was arrested in Thailand in September 1993. Martin was in various Thai prisons and was placed on death row; when he completed his commuted sentence there in 2011 he was transferred to an Indiana prison due to smuggling drugs into that US state (while in a Thai prison). He served the final part of his sentence in Sydney before being freed in 2015.