Tough thread ....I deeply sympathize with those who lost someone that they cared about. I think for those of us who are older, we likely have multiple examples from our past.
My first cousin, who was my age and regrettably headed down a bad path with drugs was found with a pistol in her right hand, deemed suicide by the police but she was a very left hand dominant individual. She was also purported to be in the process of testifying against a dealer.
My first boss in the Navy was stabbed by his wife the night after I sat at the same table with them at the Seabee Ball.
My roommate got married, moved to Guam and was found dead under mysterious circumstances that didn't add up, shortly after he was known to be working on a construction contract corruption case.
A very sweet hospital administrator, who was part of the medical team that relieved us and had a four year-old daughter at home, was gunned down by a Taliban infiltrator while jogging, unarmed and inside our base in Afghanistan (same place that I used to run frequently).
I knew Nidal Hissan, the mass murdering psychiatrist from Fort Hood, by sight, from him being in the med school class behind me.