Tips about potential acts of mass killings have spiked, and law enforcement appears to be paying close attention to threats.
Performers at Gem City Shine included Chance the Rapper and Stevie Wonder.
The Ohio city's mayor, Nan Whaley, tweeted that she is "so excited" about the Sunday event.
Adam Bowles hopes to raise at least one dollar for each of the 2,300 miles driven — funds that will go toward supporting the victims of the El Paso massacre.
Whaley said she was just doing her job when the president insulted her.
The Dayton Police chief said that the gunman who carried out a deadly mass shooting in Dayton planned the attack in advance.
"We’ve heard politicians send their thoughts and prayers while failing to act," the 10-time Grammy winner said. "We are done with that."
“This is a moment to reflect ... and to remember the individuals whose lives were cut short," said executive editor Martin Baron.
Trump "turns on everyone, and soon it will be you and then the entire country," cautioned the president's former pal.
As the singer pledges her help to the three mass shooting sites, the Trump campaign still owes El Paso $569,000.
The "Newsroom" host also called out President Donald Trump and Congress for failing to tackle the nation's gun violence epidemic.
An online petition calling for stores to stop profiting from firearms after shootings in El Paso, Texas, and Dayton, Ohio, has gained more than 55,000 signatures.
Mitch McConnell told a Kentucky radio station that Trump called him Thursday morning and they discussed several ideas.
The president wouldn't stop watching TV and ended up lashing critics instead of comforting shooting victims in El Paso and Dayton, Maggie Haberman tells CNN.
President Obama sang "Amazing Grace." President Trump hurled insults at just about everyone.
In a new letter, mayors from across the country ask Senate leaders to bring the chamber back from recess to act on gun violence.
This week's cover story comes on the heels of back-to-back mass shootings in Dayton, Ohio, and El Paso, Texas.
“It’s not about you. It’s not about you. For once," the CNN host said.