After violence pierces U.S. cities and towns, Americans come together. Later politics can drive them apart.

A chain of solidarity was formed to help people affected by the massacre.

Las Vegas shooter Stephen Paddock killed Sunday 58 people and injured nearly 500 others. But he has also traumatized a whole city, which now seeks to relieve his anguish.

The creators of a remembrance garden in north Las Vegas have invited people to leave messages and reflect as the city tries to process its grief.

One of its creators, landscape architect Mark Hamalmann, said it is a "remembrance garden," featuring 58 trees planted along a small paved walkway. In the middle, there is a large oak tree representing the "tree of life," while American flags adorn a wooden fence.

Apart from the twinkling lights of hotels and casinos , a small healing park was opened in the north of Las Vegas , as part of citizen efforts to heal the wounds left in the city by the fatal shooting last Sunday.

After escaping Hurricane Harvey in Houston, Royce Christensen worked at the Las Vegas music festival.

Stem cells have the potential to revolutionize treatment for a wide array of diseases, such as Alzheimer’s and Parkinson’s, though harvesting enough of them for beneficial use and keeping them viable until they are needed presents significant challenges. So, researchers at the University of Nevada, Las Vegas (UNLV), have developed an efficient technique for taking these cells from a common source—wisdom teeth.

When she was under fire, dodging bullets at the Route 91 Harvest festival on Sunday, Megan Greene felt an odd sense of purpose. "If you're still breathing, you're fine," she told a panicky woman trying to escape with her mother, who uses a wheelchair.