Police are investigating a suspected murder-suicide in which a mother and her 5-year-old daughter were found shot dead on July 31.
Nakesha Carrere, 26, was found dead with her daughter, Abigail Creamer, 5, in their home in Thibodaux, Louisiana. Both had a gunshot wound to the head, according to KPNX. The girl's father, Charles Creamer Jr., discovered the bodies and called 911 on July 31.
Investigators found a letter believed to have been written by Carrere inside the home. The note's contents have not been released.
"This is a tragic incident, and we extend our heartfelt sympathies to the family," said Sheriff Craig Webre of the Lafourche Parish Sheriff's Office. "Investigators are still processing evidence, but we are confident in our determination of a murder-suicide."
Charles, a U.S. Marines Sergeant who has served in Afghanistan, was honorably discharged in 2014, the Daily Mail reports.
"American Roulette: Murder Suicide in the United States," a 2015 study published by the Violence Policy Center said that, in the first half of 2011, there were 313 incidents of murder-suicide in the U.S., resulting in 691 deaths, Morning News USA reports.
Of the 313 cases, 280 cases, or 89.5 percent, involved firearms. Only 30 of the cases had been committed by female suspects, with the other 283 cases being committed by males.
According to the Gun Violence Archive, there have been 31,888 shooting incidents so far in 2016, with more than 8,000 deaths. The number of children under 11 killed or injured by guns in 2015 is 372. There have also reportedly been 218 mass shootings in the past year.
Webre said there was a high likelihood that Carrere shot her daughter with a single gunshot to the head, immediately killing her, and then shot herself.