<p>A court found that Garry Davis injected three victims with lethal doses of insulin during a 48 hour period. But what if there was another victim? Is it possible police failed to collect crucial evidence to prove someone else had also been killed?</p>

A court found that Garry Davis injected three victims with lethal doses of insulin during a 48 hour period. But what if there was another victim? Is it possible police failed to collect crucial evidence to prove someone else had also been killed?

05 The Invisible Killer | Did police miss a murder?

Background Briefing is the ABC's flagship investigative journalism podcast. Its award-winning investigations and documentaries expose cover-ups, corruption, real-life mysteries, whistleblowing, crime, fraud and miscarriages of justice — often before these stories receive mainstream attention.

The Background Briefing podcast brings you true stories not everyone will want you to hear, told by trusted reporters across Australia.

This Australian podcast makes investigative journalism bingeable. From scams and fraud to schooling and health scandals, tech and social media digs, police exposes and various unsolved cases, each episode of the Background Briefing podcast is a must-listen.

Recent series include:

Hometown Boys exposed how a terrible crime fractured a local community around a local football club.

The Invisible Killer: a forensic investigation into unexplained deaths in aged care after a doctor makes an unusual discovery.

The Favourite: how a schoolyard secret stayed hidden for years.

Stop and Search, which uncovered the mechanics of power and police accountability.

Before and After investigated medical hype, telehealth, body image, cosmetic procedures and consumer risk.

Beef: how small feuds escalate into serious disputes.

Society & Culture

Documentary

News

Background Briefing is the ABC's flagship investigative journalism podcast. Its award-winning investigations and documentaries expose cover-ups, corruption, real-life mysteries, whistleblowing, crime, fraud and miscarriages of justice — often before these stories receive mainstream attention. The Background Briefing podcast brings you true stories not everyone will want you to hear, told by trusted reporters across Australia. This Australian podcast makes investigative journalism bingeable. From scams and fraud to schooling and health scandals, tech and social media digs, police exposes and various unsolved cases, each episode of the Background Briefing podcast is a must-listen. Recent series include: Hometown Boys exposed how a terrible crime fractured a local community around a local football club. The Invisible Killer: a forensic investigation into unexplained deaths in aged care after a doctor makes an unusual discovery. The Favourite: how a schoolyard secret stayed hidden for years. Stop and Search, which uncovered the mechanics of power and police accountability. Before and After investigated medical hype, telehealth, body image, cosmetic procedures and consumer risk. Beef: how small feuds escalate into serious disputes.

Share 05 The Invisible Killer | Did police miss a murder?

Sign up to save your podcasts

05 The Invisible Killer | Did police miss a murder?

05 The Invisible Killer | Did police miss a murder?

More shows like Background Briefing

Big Ideas

Law Report

Hack

Pacific Beat

Saturday Extra - Separate stories podcast

Pacific Review

Conversations

Radio National Breakfast

Health Report

Politics Now

Rear Vision — How History Shaped Today

RN Drive - Separate stories podcast

AM

PM

If You're Listening

Australia Wide

ABC Rewind

ABC News Daily

The World Today

Full Story

What's That Rash?

Ms Represented

Not Stupid

After The Disaster

Global Roaming with Geraldine Doogue and Hamish Macdonald

Expanse

ABC News Top Stories

No One Saw It Coming