The video of the incident was posted on Facebook.
A man was shot in the head during a Facebook Live broadcast, when a woman he was sitting beside began playing with a loaded gun. The video shows Holmes attempting to stop his girlfriend from waving the gun around.
The other man inside the vehicle tells Holmes to calm down as the weapon had no ammo in it. However, this behaviour made Holmes feel uncomfortable, as he was heard telling Demper that "you're making me nervous".
One of the passengers can be saying, "Oh my god", before they both exit the auto, which was in the parking lot of a Valero gas station in Houston.
His friend yelled in the background saying that the gun had no clip.
Mr Holmes (left) was shot in the head when the gun seen here discharged.More news: High Impact in First Hours of Railway Strike in France
Holmes' last words before the gun was sacked were, "Hey, where you from again?"
Seconds later the gun then goes off and Damper gasps as a bullet hits Holmes in the head, blood pouring into his white T-shirt.
Following the shooting incident, Click2Houston reported Damper and Coleman fleeing the vehicle, leaving Holmes bleeding out in the front passenger seat.
Before the authorities arrived, the Houston woman attempted to wash away the gun residue from her hands. He was rushed to Ben Taub Hospital and reported to be in critical condition. The other man involved in the shooting video was not charged. She was charged with tampering or fabricating of evidence.
Houston police told KPRC-TV that they were investigating the incident as an accidental shooting but it will ultimately be for a grand jury to decide the outcome.