Deadliest Catch's Captain Keith Colburn Open's Up About Tony Lara's Death: 'It Came as an Absolute Shock'

When Keith Colburn got a phone call that longtime friend and fellow captain Tony Lara had died in his sleep, the Discovery star couldn’t believe the news.

“It came as an absolute shock that he had passed away,” Colburn tells PEOPLE of Lara’s death on Saturday.

“I know Tony had some heart problems a couple of years back, but he didn’t really talk about it much.”

Deadliest Catch Ship Captain Tony Lara Dies in South Dakota at the Age of 50

Tony Lara, who was featured on Discovery’s Deadliest Catch, died on Saturday in South Dakota, PEOPLE can confirm.

“Our thoughts and prayers are with his family at this sad time,” a spokesperson for Discovery tells PEOPLE.

Lara, 50, was in Sturgis, South Dakota, for its annual motorcycle rally when he died over the weekend in a private home.

On Tuesday, Meade County Sheriff Ron Merwin told PEOPLE that after an early autopsy Lara is believed to have died from a heart attack in his sleep.

Former Producer of Discovery's Deadliest Catch Fatally Shot in Pasadena

A former producer of Discovery’s Deadliest Catch was shot and killed near his parents home in Pasadena, California, on Friday, multiple reports confirm.

According to ABC 7 News family members identified the body to be Joe McMahon, 25.

Discovery issued a statement, saying: “We are heartsick about this tragedy–our thoughts and prayers go out to his family and to all that knew and worked with him.”

Amy Majors Joins Deadliest Catch's All-Male Crew

Watch Mandy Hansen on Board with Deadliest Catch Crew

Sig Hansen's 18-Year-Old Daughter Joins Deadliest Catch's All-Male Crew

When it comes to the family business of crab fishing in the Bering Sea, captain Sig Hansen couldn’t keep his 18-year-old daughter at bay anymore.

“I loved it!” says Mandy of her gig as the “bait girl” aboard her dad’s fishing vessel on the latest season of Discovery’s Deadliest Catch. “I finally got my shot out there.”

Luke Perry Thinks 'Reality TV Sucks for the Most Part'

If there’s one of Tori Spelling’s former Beverly Hills, 90210 costars who isn’t tuning into her dramatic True Tori docureality series, it’s most likely Luke Perry.

“I think reality TV sucks for the most part,” the veteran actor, 47, said when he sat down with PEOPLE last week.

Deadliest Catch Captains Say Crab Fishing Is Like Going to Jail

Emotions Run High on Season Premiere of Deadliest Catch

The eighth season premiere of Deadliest Catch opens with something viewers rarely see – the fishermen at home.

Wise-cracking tough guy Capt. Johnathan Hillstrand of the Time Bandit shares a tearful embrace with his toddler granddaughter before heading out for another dangerous season of crab fishing. Edgar Hansen watches his kids swinging and laments the quick passage of time.

Deadliest Catch: Drama on the High Seas for the Harris Boys

Are Josh and Jake Harris at their breaking point on Deadliest Catch?

All season long, the ghost of their late father, Captain Phil Harris, has haunted the crew of the Cornelia Marie. Relief captain Derrick Ray, who is helming the boat this season, has been trying to chart his own course. But when low crab numbers caused morale to sink, temperatures rise on Tuesday’s episode.