It Was the Only Crime He Ever Committed : Jasper Steringa
This Is Monsters
Jiles
4.7 • 1.9K Ratings
🗓️ 1 May 2026
⏱️ 21 minutes
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Summary
Episode 20 : Jasper Steringa
When Marianne Vaatstra was found dead in a rural area in the Netherlands in 1999, the authorities quickly started searching for her killer. The only problem was that Jasper Steringa had never committed any other violent crime, so he was able to stay undetected for over a decade.
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Transcript
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| 0:00.0 | It was the morning of Saturday, May 1st, 1999, in Zvagvestenda, the Netherlands, that Bauka and Maka Vastra |
| 0:08.0 | noticed that their 16-year-old daughter, Mariana, had not returned home from a night out with her boyfriend the previous evening. |
| 0:15.8 | Bauke called her boyfriend Spencer's home and found out that the couple had found a bicycle for Mariana to ride |
| 0:21.4 | home on, which she did, alone, in the dark, at about 1 a.m. Mika suggested calling the police |
| 0:28.8 | right away, but Baca thought that he should go out and look for Mariana first. He got in his car |
| 0:34.2 | and drove the route that his daughter might have taken home in the early morning hours. |
| 0:39.1 | Eventually, Balka returned home without finding Mariana and started calling other people. |
| 0:44.1 | He called her best friend Afka as well as his older sons, Mariana's brothers. |
| 0:49.2 | They all started searching for the missing teen. |
| 0:52.3 | When 10 a.m. hit and they hadn't found Mariana, her parents |
| 0:55.6 | called the police who showed up at the house and made a missing person's report. While Bauka and |
| 1:01.2 | Mika were speaking with the police, Afka and her boyfriend Hans were driving around looking for |
| 1:06.0 | clues to where Mariana could be. While driving on a road between Spencer's house and Mariana's house, |
| 1:12.1 | they spotted a bicycle lying in a ditch. It matched the description of the bike Mariana |
| 1:17.6 | had left on. Afga and her boyfriend stopped and waited for Spencer to arrive, who confirmed |
| 1:23.6 | the bike was definitely the one Mariana had been riding. When he showed up, he was positive that it was the same bicycle. |
| 1:31.3 | While Afka stayed in the car and called Bauca, Spencer and Hans walked into the wooded area on the side of the road. |
| 1:38.5 | They followed a path in the woods and eventually found Mariana, almost fully nude, lying on the ground. |
| 1:45.2 | When Hans reached down to feel her pulse, he found none. |
| 1:49.3 | It would take more than 12 years for investigators to track down the man who took Mariana's life, |
| 1:54.8 | and it would not turn out to be who the community thought it was. |
| 1:58.6 | This is Monsters. |
... |
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