The most notorious serial killer in modern history of Russia. Why did it take so long to catch him?

In this episode we are going to talk about a story of Angarsk Maniac, also known as a serial killer, Mikhail Popkov. He is considered to be the most notorious serial killer of the past decades. He murdered more than 80 people.
Sasha Sulim is a journalist who has been looking at this story for a long time. She was lucky enough to talk to Popkov as well as to people who caught him. Having restored the timeline of this high-profile criminal case, Sasha found out that the capture of the most dangerous criminal became possible thanks to people who went against the system.
Content:
00:00 Who is the Angarsk Maniac?
6:57 The story of the murdered Natalya Titova
10:33 Angarsk in 1990s
14:28 The story of the murdered Oksana Stroganova
18:25 Interview of a survived victim
31:39 The story of the murdered Marina Lyzhina
37:30 Why was it hard to catch Popkov?
44:16 How did they catch the Angarsk Maniac?
55:20 Why did Popkov commit crimes?
1:01:04 Angarsk Maniac talks about his wife
1:04:07 Popkov talks about his first murder
1:05:42 "The Cleaner"
1:15:47 What rewards did the investigation group receive?
1:19:17 Postscript