Felix Ruiz, 48, is accused of stabbing his common-law wife, Sofia Martinez, to death on September 6, 2016, in Houston, Texas. The attack occurred in front of their six children. Ruiz reportedly then attempted to take his own life by cutting his neck but did not die.

Ruiz had a documented history of domestic violence with Martinez, including several prior incidents. The children witnessed the fatal violence, leaving the family profoundly affected.

What details do readers in Houston remember about this family or that day that could help piece together what happened?