Images, from left to right: Fernando Amaya and Christopher Portillo Luna (courtesy of the Houston Police Department). Background: Apartment allegedly targeted by the two, resulting in one man’s death (source: KTRK).

A Texas teenager suspected his girlfriend of infidelity, prompting him and a companion to allegedly visit the apartment of who they thought was the rival and unleash a barrage of gunfire.

But they killed the wrong man and injured another person who was not their intended target, police say.

Both 17-year-olds, Fernando Amaya and Christopher Portillo Luna, are facing charges, including murder, connected to the fatal shooting of 41-year-old Marcos Cotto Torres, according to a press release by Houston police.

Cops responded shortly before 1 a.m. on March 18 to an apartment complex in west Houston for a report of a person down. When they arrived they found two men had been shot. Paramedics discovered Cotto Torres unresponsive and lying in an upstairs bedroom suffering from gunshot wounds to the back of the head and other parts of his body; they pronounced him dead. There was a second victim who was suffering from a gunshot wound to his buttocks. He was taken to the hospital for treatment.

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According to a probable cause arrest affidavit, another occupant of the apartment said his younger sister, a minor, was dating Amaya. Police said the girlfriend was cheating on him with another man who lived in the apartment but he escaped uninjured. The girlfriend later told detectives that Amaya told her that he was going to shoot up the apartment and then kill himself, the affidavit said.