Caleb Willingham (aka “Killa K” and “Double K”), who appeared on TLC’s reality series 1000-Lb. Sisters, has died. He was 40 years old.

The news of Willingham’s death was confirmed by his stepmother, according to our sister site Deadline. No cause of death was revealed.

Willingham was the husband of 1000-Lb. Sisters star Tammy Slaton. Slaton posted a tribute to her late husband on Instagram on Saturday, writing: “Rip sweet angel you will forever be missed and loved so much.” She also thanked Willingham for showing her “real love and happiness.” Willingham was reportedly estranged from his wife at the time of his death.

The couple first met in rehab, where Slaton was trying to lose weight and Willingham was being treated for obesity. They married in the fall of 2022 in Ohio and their wedding was aired during the show’s Season 4 finale, which aired in March 2023.

1000-Lb. Sisters premiered in Jan. 2019 and follows YouTubers Amy and Tammy Slaton, whose combined weight is over 1,000 pounds, as they work toward losing enough weight to qualify for and undergo bariatric surgery. In the midst of appointments and a mixture of dietary and physical regimens, the sisters bring humor and heart to every episode as they offer viewers candid reactions and wacky jokes.

And yet Steven Assanti still lives. Go figure.

The DM keeps having weekly updates on Tammy. She's lost about 300 lbs. now.

Poor guy. But I never bought that the marriage was anything other than scripted.

How did they sex each other?

He seemed like a sweet guy who loved being on TV.

"No cause of death was revealed."

Calling all DL sleuths!

Wasn't he on the Titanic sub?

Anyone watching the new season?

Tammy looks to be half her size now.

Amy looks fatter.

Amy's husband and that other sister are about to fight going by the commercial I just saw.

Amy's husband is clearly not all that mentally there. You see his kids running around and there's no instinct inside him to take action or help Amy. He just kind of watches. (This could be unfair editing--but as Amy's clearly losing her mind over it, maybe the editing is just creating a visual story for what he's actually doing).

I wonder what could be done to help someone like that.

I'm amazed and delighted that Tammy is still with us. It's sad seeing her husband knowing that he's passed away. Amy has way too much on her plate and I'm not surprised she's gained weight. Is everyone in that family overweight.

If cremated that will be one big grease fire.

Estranged?

All the gobble heart hugs blabbed out in huffing half breaths don't make up for sliding over the estrangement.

She sat on him and he was crushed like poor Cosette

Poor Tammy coming home to all this drama. She should have stayed in rehab. I loved Amy's sister staring down Michael. She was ready to kick his ass.

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