The medical director of the American Red Cross killed his infant son, his girlfriend and their pet dog police in Nevada say.

The bodies of Dr. John Lunetta, 40, his girlfriend Karen Jackson, 35, and their son John Jr. who would have turned one-year-old Wednesday, and the family's dog were discovered Monday night in their Las Vegas home.

Police say they were called recently to the home over a custodial argument, but not a physical one. Lunetta owned a gun legally. They say he fatally killed his family before turning a gun on himself.
American Red Cross doctor kills his family, dog, himself | Daily Mail Online