The Man in the Hat

Kassandra Cantrell was 10 weeks pregnant when she went missing from Tacoma, Washington, in August 2020. Security footage showed a mysterious man in a hat hovering around Kassandra's car, along with other suspicious movements. Who was this man, and what was his motive?

Sources: 

 1) https://www.cbsnews.com/news/kassanndra-cantrell-murder-colin-patrick-dudley-digital-evidence-mysterious-killer-hat-man/
2) https://www.cuimc.columbia.edu/news/most-common-causes-maternal-death-may-surprise-you#:~:text=Researchers%20at%20Columbia%20University%20have,among%20pregnant%20and%20postpartum%20women.
3) https://www.cbsnews.com/pictures/kassanndra-cantrell-disappearance-investigation/17/
4) https://www.thenewstribune.com/news/local/crime/article268780602.html
5)https://www.reddit.com/r/AskReddit/comments/1poc937/out_of_every_true_crime_case_which_one_disturbs/