Save the Children said two of its workers were among at least 35 killed on December 24 by Myanmar's military as they were fleeing conflict.
Natalie Brothwell was arrested in her Arizona home on two counts of murder and two counts of felony child endangerment.
The violence was "a reminder of the Taliban's past record and a horrifying indicator of what Taliban rule may bring," said the head of Amnesty International.
"This tragic death today is a stark reminder of the dangers they face and the sacrifices they make," said Defense Secretary Lloyd Austin in a statement.
Nathan Allen gunned down an Air Force veteran and a retired state trooper in Winthrop, Massachusetts, on June 26, authorities said. He was fatally shot by police.
A family was trapped by a ride's seat belts when the boat carrying them flipped over. One boy died and his brother is in the hospital in critical condition.
The 19-year-old British man reportedly made a deal with a devil to kill six women every six months to win the Mega Millions Super Jackpot.
At least 19 bodies were recovered along a dirt road in northern Mexico on Friday after residents reported a burning vehicle across the Rio Grande from Texas. Investigators believe the victims had been shot before they were set on fire.
More than 1,250 people have been killed by police this year under the watch of the far-right president, who came to office promising a zero-tolerance approach to crime.
Three bodies were found at a rural hotel in Bavaria and two more around 400 miles away in the town of Wittingen.
"I feel absolutely sickened having my name uttered by this person," PewDiePie tweeted following the deadly shooting.
Pike County prosecutors said the custody of suspect Edward "Jake" Wagner and victim Hanna May Rhoden's daughter played a role in the slayings.
George "Billy" Wagner III was scheduled to appear in court in Lexington, Kentucky, on Wednesday for his arraignment.
The seven first responders were discovered early Saturday, each of them with gunshot wounds in their heads.
The conflict in the southern Philippines has been raging for more than a month, despite President Duterte's assurances it would be over in three days.
73 percent of respondents said they were concerned that they or someone they know will be a victim of the war on drugs.
The rights group claims Duterte's drugs war involves extrajudicial executions and falsified evidence.
Witnesses reported seeing the victims being bundled into an unmarked van.
A survey showed that a majority of Filipinos saw the drugs war as excellent, but disapproved of killing criminals.