As the information is clear, he was not married, so he had no kids. Mcnutt was living alone when he shot himself.
He had a mental illness and was alone and lonely, so that took his life.
Earlier before attempting suicide, he posted a picture that clearly showed us that he wanted to know if someone loved him or not.
At 33, Mcnutt was craving love, which he had never gained from anyone, making him have a mental illness.
