We dated

Back when I was in high school, I met a guy through some mutual friends. I was about 15 at the time. We will call him Andy.

Andy was quirky, but he had a certain charm about him and we flirted quite a bit. We remained as casual friends and things got romantic after about 2 years.

As I got to really know him, I noticed that he was a bit more than just "quirky".

A couple things that I thought were strange, but I wrote off as harmless and sweet:

He bought me a cake as an "anniversary" gift after 1 week. Then he bought me a card that said "I love you" and wrote in it "thanks for having sex with me" and left it on my windshield at my place of work. Strange, right?

He would also show up at my job and wait around for me or follow me around quite a bit. He even got a job at the same place I worked. I worked at a grocery store and he eventually ended up getting fired and banned from the store for stealing.

I broke up with him after a few weeks (well before the stealing incident) because I felt like something was just off. He never let me meet his family or come to his house if he knew anyone would be home. He mentioned that he had a lot of siblings, but I never one met any of them.

At one point he told me that he used to make his little brother hold his pee for as long as possible. Then when his brother would start getting upset, he would squeeze him until he was forced to wet his pants. He didn't seem to understand why I thought that was fucked up.

Anyway there were a few instances of violence or outbursts that I heard about as time went on and I was glad I was no longer hanging around him.

So about 2 years after I graduated high school, my best friend called me because a mutual friend, Jeff, had been murdered in his own apartment.

Andy had stabbed Jeff in the neck because Jeff refused to get drugs for Andy. (Jeff was a pharmacy technician). Our entire city was devastated by this truly horrible event. Jeff had been a good friend to Andy, and he ended up losing his life for it.

Andy is in prison now, but sometimes I can't help but feel strange for being intimately involved with someone who ended up being a murderer.

TLDR: I started dating someone from high school, noticed some strange behaviors so I broke up with him. He ended up murdering a friend later on.