Is it wrong to know a murderer and not tell?

Is it wrong to know a murderer and not tell?

    Hi, I am 25 from Ohio  I was raised in a small town and had great friends. I was taught not to snitch and to keep my mouth shut to protect myself and my friends/families best interest. I have a lot of secrets that I have collected over the years but most of them are silly and would have no serious impact if I did spill the beans. I have other secrets that are not so simple to dismiss. A few years ago my best friend killed a man in front of me and I did nothing. I didn’t say anything nor did I call the police or anything else that would raise any alarms.

My friend killed a homeless man that we found sleeping under an overpass in Washington. He never even woke up before his head was smashed with a large piece of concrete, apparently leftover from a past construction project on the highway above.

Up until the day of the killing I had never dreamed of being in the middle of that kind of situation and when it happened It felt almost dream like. My friend killed a homeless man that we found sleeping under an overpass in Washington. He never even woke up before his head was smashed with a large piece of concrete, apparently leftover from a past construction project on the highway above.
He never gave any real reasons for his actions. It was completely random and was just a matter of the man sleeping at the wrong place and the wrong time. We were just walking home from a friends when we stumbled across the mans path and without any warning my friend picked up the brick and just smashed the mans head like it was nothing. He then just looked at the mans brains literally pouring from a half dollar size hole he just put into the side of his head as if he was impressed by the amount of blood.

I totally know that I should have said something,  I know that I am guilty of not saying something then but that’s been years ago. How can I forever hold myself accountable for what my friend did that day? I do not feel bad for the things that happened. I didn’t do them. I didn’t help anyone hide that they did it. I just didn’t say anything.  Would you say anything? Would you turn in your best friend over them killing someone that didn’t even matter? Is it wrong to know a murderer and not tell?

Is it wrong to know a murderer and not tell?
Is it wrong to know a murderer and not tell?

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