How many victims did Willem van Eijk eventually confess to murdering?
Reference
OpenAI's Answer
Willem van Eijk, often referred to as "The Beast of Harkstede," did not confess to the murders for which he was suspected. However, he was convicted twice, for a total of five murders. In addition, he is suspected of having killed at least three more women.
For more comprehensive details, you can visit his profile on Murderpedia or his Wikipedia page.
Here is an image of Willem van Eijk: