Maybe that was the whole reason for the murder to begin with..... She wanted to keep the baby, MC didn’t and he snapped. I think his family helped him cover it all up. MOO
I have my own opinion on what led up to that horrible event.
Jo Ellen probably found out about her pregnancy in May or June of 1970. Thus, giving one or two months of decision making conversations between the couple. Abortion would've been out of the question for her, leaving only adoption or marriage.
The adoption arrangement plan would've been to go to the trusted relative in Colombia, Missouri. While there, Jo Ellen would explain her situation, and request the family members help during the pregnancy and the baby's subsequent adoption. Thus hiding her pregnancy completely from her immediate family and avoiding small town gossip.
The marriage plan was for the couple to elope in the days before he left for Europe and Israel. If she were legally married, then nothing could be said and she would give birth to their child without shaming and gossip. In addition, she would be seen as a proper wife in an affluent family.
I think in the 20 minute argument that happened on the lawn of the Weigel family home, the killer decided to tell her that he was not going to marry her before he left on his trip. I believe she was convinced that he was going to not leave her without a wedding ring on her finger. The thought of being left behind to face either the birth and adoption alone, or have to face being a single mother in a small town was terrifying for her.
Do I believe this was a sudden outburst of anger and frustration by the killer? No.
I believe he decided a long time before to string her along with the idea of marriage. In his 18 year old mind, he was not going to be tied down with a wife and baby. He had college plans, overseas trips and fun with friends ahead. All that would be gone, and it was too much of a sacrifice.
I believe he knew if she didn't comply with his wishes to leave town, and have the baby in Colombia, he decided he would take her one last time to the lake. He had all the supplies needed and had made up his mind. I believe he calculated her murder.
Once her body was found, his family and members of the small community hid him. Why? Because in their minds, perhaps, she was just a working class girl who was trying to climb the social ladder by getting pregnant.
As always...JMHO