Drugs and/or alcohol
Very sad - thankfully he did not kill anyone but himself.
Mary Joyce Strzelczyk, of West Seneca, N.Y., said she suspected her son may have been suffering from an untreated mental or emotional disorder.
"I'm kind of numb right now," she told The Buffalo News in Friday's editions. "I had seen trouble with his mood disorders coming."
She said she last saw her son in Pittsburgh last weekend when she went to visit her grandchildren.
curious? which part do you not understand?