very interesting.
So....If a president committed murder he would have to be impeached first before he could be arrested, charged, and tried? ( Wow!)
In that circumstance, not exactly. The president could be charged and tried for murder. US v. Nixon established that.
However, the president would still be president.
What would probably occur is that the 25th Amendment would be invoked so that someone is running the country and then the president could be impeached, tried, and convicted.
I'm not saying he would have to be; the isue is undecided.