The sudden death of renowned restaurateur Harry Morton shocked Hollywood. He died of a heart attack at the age of 38. 

On Saturday, a week after his brother found him unconscious in his home in Beverly Hills, friends and family gathered together for a special memorial service for Harry Morton. The service was officiated by a priest and a rabbi. 

Memorial Service For Harry

The service included speeches from those very close to him, remembering the good life he lived. According to the insider source of People, the gathering at Peter Morton's house after the funeral was a "strictly-by-invitation" only. There were quite a number of people both from Harry's Hollywood and business circles. 

Notable guests were actress Lori Loughlin and fashion designer and husband Mossimo Giannulli. Actor Stephen Dorff, oil heir Brandon Davis, and Harry's ex-girlfriend Demi Moore were also in attendance. 

Morton, the brilliant mind behind the restaurant chain Pink Taco, died last Saturday. The spokesperson from the Beverly Hills Police Department confirmed that it was his younger brother Matthew Morton who found him in his home.

Paramedics were called and they announced his death after a few attempts to revive the restaurateur. 

On Wednesday, Matthew took it to Instagram to remember the good life of his brother. He wrote in the post that his brother meant so much to him and emphasized that Harry was meaningful to people in so many ways, but his life meant more to his little brother.

Matthew went on to encourage his followers to reach out to their siblings. He urged them to check on their health, so they will not suffer what he had gone through when he found his brother unresponsive. 

Harry Morton's Death Explained

According to the statement from Harry Morton's family, the young businessman suffered from coronary artery disease. There was a narrowing or blockage of his coronary arteries that restricted the blood flow. The statement emphasized that there was a "mild enlargement" of the heart.

The family's heart surgeon, Kathy Magliato, found that Harry suffered from the calcification of three main arteries. She confirmed that he had a sudden cardiac arrest and pointed out that the cause of death was due to the loss of heart function. 

On the other hand, the Los Angeles County Coroner's office revealed that although the autopsy on harry Morton's body was completed, the official cause of his death was deferred pending further investigation. They have yet to confirm the official cause of his death. 

Shortly after news broke, Lindsay Lohan -- who dated Harry Morton in 2006 -- paid tribute to her "best friend." Lohan was one of the first people to react upon learning of Harry's passing. However, her absence in the "by-invitation-only" gathering after the funeral was rather notable.

Lohan's family and friends, nonetheless, showed support to her post about Harry. 

READ MORE: Lindsay Lohan's Ex, Harry Morton, Found Dead; Actress Hysterical And Inconsolable