A Denver teenager who identified with the grim reaper apparently broke into the home of his 37-year-old ex-girlfriend, shot her to death and then fatally shot himself, authorities say.

The case remains under investigation but the evidence suggests that Kevin Torres, 18, shot Tania Arbaiza before shooting himself early Tuesday, said Sonny Jackson, Denver police spokesman.

In the days before the shooting, social media posts by Torres and Arbaiza point to the recent break up of their romantic relationship. Torres also was scheduled to be sentenced Monday for a felony trespassing conviction in Jefferson County

“Sometimes you gotta give up on people. Not because you don’t care but because they don’t,” says a message posted early Monday on Torres’ Facebook page.

On Feb. 20, Abaiza shared a Facebook message from another person that in Spanish read, “When you have a good heart, help too much, trust too much, give too much, love too much, this is what happens.” The post was illustrated with the image of a boy with 10 sharp objects including a scythe, knives, a pitchfork, scissors and a nail stabbed into his back.

Torres’ last Facebook post at 3:04 a.m. Monday featured four illustrations of grim reapers. In Spanish, he wrote that sacred death will never abandon him and will be with him forever. Torres had a grim reaper tattooed on his chest.

The Denver Medical Examiner’s Office ruled Torres’ death a suicide and Arbaiza’s death a homicide. Both were pronounced dead at the scene. Both were originally from El Salvador.

Police found the couple dead after being called to investigate a burglary in the 1000 block of South Grove Street at 3 a.m. Tuesday.

“He shot her unfortunately and then took his own life,” Jackson said.

If detectives confirm the officers’ belief that the case was a murder-suicide, the case will be closed, he said.

“There’s nothing else we can do,” Jackson said.

Lakewood police arrested Torres on May 26 on robbery charges. Torres later pleaded guilty to a reduced charge of trespassing. He was set to be sentenced at 11 a.m. Monday.