Student and boyfriend die in apparent murder-suicide on their way back to school

Louisiana authorities are investigating the deaths of a young couple whose bodies were found shot to death on a highway over the weekend.

On Saturday, October 12, police discovered Dashayla Ardoin of Mamu, Louisiana, and Louise along a highway in Acadia Parish, local police said in a statement. Glenkeithan Robertson of Opelousas, Anna died. Authorities have not revealed the age of the victim.

“Based on the investigation, the case is being considered a murder/suicide,” the Acadia Parish Sheriff’s Office said in a statement Monday.

Authorities have not revealed who the shooter was or discussed a possible motive. The Acadia Parish Sheriff’s Office did not immediately respond to PEOPLE’s request for comment.

Police said the couple were on their way to Mamu when their bodies were discovered at around 7pm. Mamou High School, where Ardoin attends, was hosting a homecoming that evening, according to the school’s Facebook page.

Mamu High School said in a tribute posted online that the community was mourning “one of our own.”

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“Dashara will always be remembered for her courage, her kind heart and her beautiful smile,” part of a tribute posted Monday read. “She was much loved and will be deeply missed.”

Robertson’s Facebook page lists him as a local DJ. In an Instagram post about two months ago, Robertson shared a photo of him and Ardoin with the caption: “Me and you against the world.”

After Saturday’s shooting, a woman who identified herself as Robertson’s sister, Makayla Sparrow, wrote on Facebook that Robertson was “loved” and urged people not to jump to conclusions about the case.

“Don’t label my brother a killer and selfish, my mother. [didn’t] Don’t raise killers,” the post read in part.

If you are experiencing domestic violence, call the National Domestic Violence Hotline at 1-800-799-7233 or visit thehotline.org. All calls are free and confidential. The hotline is available 24/7 in more than 170 languages.