If you are right handed it is quite natural to shoot yourself in the left temple - if you shoot yourself at all.
Michael Hasting's car accident seems to have been a car accident. Some of his own family and friends have said that he was in an odd state before the accident with his brother describing it as "manic", which would unfortunately explain what happened.
The Philip Marshall thing - well, he just snapped. He did kill his kids, his wife's dog and then himself. Philip Marshall had bipolar disorder. There was a prior police history related to threats to family members!
http://www.uniondemocrat.com/News/Local-News/Sheriff-details-investigation-of-Marshall-murder-suicide
A lengthy history of run-ins with wife Sean Plummer, the childrens mother, is documented dating back to 2008, when she began divorce proceedings, only to later withdraw the petition and reinstate it in October 2012.
On Nov. 11, 2008, Plummers sister, Erin Chamberlain, then a Murphys resident, told police Marshall threatened Plummer she will not see December. Eleven days later, Chamberlain said she felt threatened for the safety of her children as Marshall repeatedly drove past her home. Phone messages Marshall left at Chamberlains home in December included statements that "if you dont call me, mom is going to have problems, we dont want this, Sean, you are going to get what's coming to you" and "Macaila, this is daddy. We are going to have lunch. We need to talk right now. If not, something is going to happen. On Dec. 7, the report states Marshall violated an emergency protection order.
Believe in CT all you want, but there is no reason whatsoever to find these deaths suspicious. They are, sadly, particular instances of common but tragic incidents.