People in New Orleans brace for tropical storm Nate to hit Gulf Coast this weekend, 48 Hours on the murder of a NYC police officer Source

The Las Vegas massacre gunman’s motives are still unclear; rock legend Tom Petty dies of cardiac arrest at 66 years old Source

Police believe the Las Vegas gunman had an escape plan and must have had help along the way; therapy dogs are providing comfort in Las Vegas. Source

Kennedy is considering a primary challenge against Senator Ed Markey, who just weeks ago earned a glowing endorsement from Warren Source

The famous chef’s World Central Kitchen delivers meals after natural disasters Source

There is a major break in the nationwide vaping crisis. Public health officials said some of the marijuana products that recently sickened users across the country contained the same chemical. It’s a type of oil made from vitamin E. Dean Reynolds reports. Source

Chef José Andrés, whose World Central Kitchen delivers meals after natural disasters, has taken his mission to the Bahamas. CBS News correspondent David Begnaud went with him to a remote island cut off by Hurricane Dorian. Source

Hurricane Maria strengthens and heads toward Caribbean; New report advises parents and kids to think before they ink Source

Graham-Cassidy health care bill on life support after Sen. Collins says she’ll vote “no”; Eight of the surviving “Little Rock Nine” students recall milestone 60 years after landmark high school integration Source

A verdict was reached in the “Ghost Ship” trial. In 2016, 36 people died when a fire destroyed a warehouse in Oakland, California. One man was found not guilty, and the jury could not reach a verdict for the other. Source