Is it worth getting married?

Yesterday I saw a netflix documental about the Shannon Watts and her daughters' murder (Her husband killed her and their daughters so he would be able to start a new life with someone else).
Now I'm scared of getting married. What if I meet someone that seems nice and turns out to be a maniac.
And there are million other cases similar to the Watts'.
Wouldn't it be better to be a single mother and do an artificial insemination?
Is it worth getting married?
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