Cases of domestic violence are complicated, but all too common.
"There is nothing black and white about domestic violence, other than it's wrong," said retired Vegas police lieutenant and 13 Action News Crime and Safety Expert Randy Sutton.
There are some black and white statistic about how prevalent domestic violence is here.
Women in Nevada are 65 percent more likely to be shot and killed by intimate partners, according to Everytown Research.
In this tragic case overnight Wednesday, the man killed his wife and three kids, all with a gun, before shooting and killing himself.
"It's pretty unusual for a domestic violence offender to kill his entire family," said Sutton. "This doesn't happen very often."
But statistics show more than 11 percent of children are exposed to family violence, according to the National Survey of Children's Exposure to Violence.
It has happened right here in our valley twice in two months. This most recent case, and again last month when a man shot and killed the mother of his children outside a daycare.
The Nevada Network Against Domestic Violence says43 lives were claimed in our state from domestic violence in 2015.