The artist shared some touching snapshots of his mom as he revealed the news of her death on Sunday.
Laundrie's partial remains were discovered and identified last week after an exhaustive search.
A source tells ET that the actor is 'beside himself' in the wake of the shooting, which killed cinematographer Halyna Hutchins.
The actress' daughters also joined their mother for the film's Los Angeles premiere last week.
The photo marked the first time the pair have been seen holding hands in public.
The actor, best known for playing Gunther on 'Friends,' died Sunday morning.
The artist celebrated his 35th birthday over the weekend and donned a wild west ensemble for the festivities.
The former couple got together over the weekend to celebrate the milestone moment for their son.
The singer took to Instagram to share the news, which comes just days before the release of his upcoming album, '=.'
Souza, who was injured when the prop gun was shot, was treated for his injuries at a local hospital and later released.
The 'Flip or Flop' star and the 'Selling Sunset' star got engaged in July 2020.
arek El Moussa and Heather Rae Young are officially married after two years of dating.
The proud mom of teenage sons Sean Preston and Jayden James reflected on watching her 'babies' grow up.
Matthew also shared the memorial scholarship that has been established in Halyna's name at the AFI Conservatory.
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