Man Charged with Killing Roommate After Alleged Affair Suspicion

Mychael V. Thompson, 38, accused of shooting friend Antwon Watson, 38, at their Las Vegas apartment

Published on Feb. 21, 2026

Got story updates? Submit your updates here. ›

Mychael V. Thompson, 38, has been charged with open murder with the use of a deadly weapon after he allegedly shot and killed his roommate Antwon Watson, 38, at their central Las Vegas apartment. The fatal shooting occurred after Thompson accused his girlfriend of cheating on him with Watson, according to police.

Why it matters

This case highlights the tragic consequences that can occur when unfounded suspicions of infidelity lead to violence. It also raises concerns about domestic disputes escalating to deadly levels, as well as the broader issue of gun violence in the Las Vegas area.

The details

According to the arrest report, Thompson and his girlfriend had been dating for three years and living together for five years when Watson moved in around a month ago. Thompson allegedly came home around 7 a.m. after drinking the night before and confronted Watson, believing his girlfriend was cheating on him with his roommate. A witness said they saw Thompson and Watson arguing about Thompson's alcohol intake, and as the witness went back inside, they heard a gunshot and found Watson dead in the parking lot.

  • The fatal shooting occurred on February 12, 2026.
  • Police responded to 911 calls about the shooting at 10 a.m. that morning.
  • Thompson was arrested on February 12 and charged with open murder.
  • On February 13, a judge ordered Thompson to be held without bail.
  • Thompson is scheduled to appear in court on February 18.

The players

Mychael V. Thompson

A 38-year-old man who has been charged with open murder with the use of a deadly weapon for allegedly shooting and killing his roommate.

Antwon Watson

The 38-year-old victim who was Thompson's roommate and friend, and was allegedly shot and killed by Thompson.

Thompson's Girlfriend

Thompson's girlfriend of three years, with whom he had been living for five years before the incident.

Got photos? Submit your photos here. ›

What they’re saying

“He went there to someone who he trusted, and he was betrayed.”

— Faith Watson, Victim's Daughter (NBC 3)

“He knew my dad for a long time, and he shot him and left him dead in the parking lot.”

— Hope Watson, Victim's Daughter (NBC 3)

What’s next

A judge has ordered Thompson to be held without bail, and he is scheduled to appear in court on February 18 for further proceedings in the case.

The takeaway

This tragic incident underscores the need for better education and resources to help individuals cope with feelings of jealousy and suspicion in relationships, as well as the importance of conflict resolution skills to prevent domestic disputes from escalating to deadly violence.