Gregory Tyree Boyce, an actor known for appearing in "Twilight," has died, Fox News can confirm. He was 30.

The Clark County medical examiner's office in Las Vegas confirmed to Fox News on Monday that Boyce and Natalie Adepoju, his girlfriend, were both pronounced dead on May 13.

No causes of death were given, as both cases are still pending.

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Gregory Tyree Boyce attends LA Fashion Week Fashion Minga 2012 Event at Exchange LA on October 18, 2012 in Los Angeles, Calif. The actor, known for appearing in 'Twilight,' died on May 13, Fox News can confirm. 

Gregory Tyree Boyce attends LA Fashion Week Fashion Minga 2012 Event at Exchange LA on October 18, 2012 in Los Angeles, Calif. The actor, known for appearing in 'Twilight,' died on May 13, Fox News can confirm.  (Vivien Killilea/Getty Images)

A source told E! News that the pair was found by Boyce's cousin in their Las Vegas condo after he noticed they hadn't left for Los Angeles as they were planning to do.

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"Greg's cousin woke up and noticed that Greg's car was still at the house. He was worried because Greg was to be in LA. His cousin went to check on him and found them," the source told the outlet.

Gregory Tyree Boyce in 'Twilight.'

Gregory Tyree Boyce in 'Twilight.' ('Twilight'/ Summit Entertainment)

The source explained that Boyce was living in Las Vegas to help his mother and "would commute to LA for acting jobs and to see his daughter," who, per the outlet, is 10 years old.

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Boyce was "really focused and handling a lot of business," said the insider.

Boyce played Tyler in 2008's "Twilight" and Cowboy in 2018's "Apocalypse."