Officials responded to the corner of MacGregor and Tierwester at an apartment complex just after 8 p.m. in response to a shots fired call.
Once they arrived, one victim was found shot in the arm and torso. He was rushed to the hospital, where he underwent surgery.
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HPD said his condition is critical.
Officers were notified of a potential second victim at another nearby complex and found the man lying in the parking lot, shot to death.
According to investigators, they deemed this victim "suspicious" because he was found wearing a mask and was armed with a pistol.
According to officials, it is believed both men were shot at the same location before the first victim likely jumped a fence.
HPD said it remains unclear what led up to the shooting and the relationship, if any, between the two victims.
An investigation is ongoing.