Nine people have been killed in a shooting at an entertainment district in Dayton, Ohio. Police said they killed the gunman. The shooting comes just hours after a 21-year-old man allegedly opened fire at a Walmart in El Paso, Texas. Major Garrett anchors a CBS News Special Report from Washington. Source

The incident occurred outside just after 1 a.m. Sunday morning in the city’s Oregon district Source

A beautiful mom and her infant daughter are found dead near train tracks — was it a murder-suicide or a cold-blooded killing? Source

A beautiful mom and her young daughter are found dead near train tracks under mysterious circumstances — was is it a murder-suicide or a cold-blooded killing? Questions from “48 Hours” help get police to reopen the case. Correspondent Peter Van Sant reports. Source

Pennebaker, who received an honorary Academy Award in 2013, died Thursday of natural causes at his home in Long Island Source

Aaron Major was brought into the Berkeley County Sheriff’s Office for questioning eight days after his wife, Kadie, and baby, River, died under mysterious circumstances in Moncks Corner, S.C. By then, the coroner had already preliminarily ruled Kadie’s death a suicide. Source

Private investigator Jessica Sanders has been working pro bono for a year to prove a South Carolina woman’s death was not a murder-suicide. She talks with “48 Hours” about Aaron Major, who has maintained that he had nothing to do with the deaths of his wife and daughter. Source

In the summer of 2015, three “48 Hours” producers were working on a story outside of Charleston, S.C. While filming, they happened to meet Vicky Hall — a woman with a story to tell. Source

Titans Online’s Jim Wyatt takes a look at what stood out from the team’s scrimmage at Nissan Stadium. Source

Investigators are now trying to determine a motive for Saturday’s shooting at an El Paso mall. Chief Justice and Homeland Security Correspondent Jeff Pegues reports. Source