A Houston police officer was shot and killed Saturday evening by a man who had been reported for assault, authorities said. Source

“It’s this whole new level that I have not been prepared for,” one mom said about the difficult conversations needed today Source

A California police officer shot dead in his home — his ex-wife admits she pulled the trigger. Did a photo posted on social media lead to the officer’s death? 48 Hours” correspondent Erin Moriarty reports. Source

In 1998, Dale Pike came to Miami to discuss a business deal with Enrico Forti — the next day he was dead, and Forti was the prime suspect Source

A former TV producer and windsurfing champion says he’s in prison for a murder he didn’t commit — the only physical evidence against him: a teaspoon of sand. “48 Hours” correspondent Erin Moriarty investigates. Source

In February 2015, Exeter, Calif., police officer Daniel Green was shot four times and left for dead in his home. At first, his ex-wife Erika Sandoval denied having anything to do with his death — then she admitted everything. Source

Morris Marsh, 17, has been accused of murder. Source

When Erika Sandoval, 28, got off work the morning of February 6, 2015, she says she had three things on her mind: getting a pedicure, having her taxes done, and taking her 2-year-old son for frozen yogurt. But the first thing Sandoval did after leaving work was to go to the house of her ex-husband Police Officer Daniel Green where, she admitted to jurors, she killed him with four bullets fired from close range. Source

Joshua Kaleb Watson was one of three people killed by a gunman Friday at Naval Air Station Pensacola Source

Two decades after Dale Pike was shot dead on a Miami beach, questions still swirl around the man convicted for the murder Source