Despite all that’s been going on in their lives, sisters Kim, Kourtney, and Khloe Kardashian took pause yesterday, September 30, to remember their late father on the tenth anniversary of his death.

“Forever missing you!” Khloe tweeted. “My guardian angel, resting in paradise.”

Robert Kardashian Sr., an entrepreneur and lawyer, was best known for his involvement in O.J. Simpson’s 1995 murder trial. In 2003, Robert was diagnosed with esophageal cancer at age 59 and passed away less than a year later. As seen on Keeping Up With the Kardashians, the father-of-four’s death rocked the lives of his children and has continued affecting them to this day.

“Forever missing you dad,” Kim tweeted. “I can't believe it's been 10 years since you passed. Not a day goes by that I don't think about u or wish u were here! So many amazing blessings have happened since you've been gone & I wish u were here to see them all! I'd trade them all to have you back but I know you're watching over us protecting & guiding us.”

Kourtney and brother Robert Kardashian Jr. also added a few words of remembrance.

“Missing my guardian angel,” Kourtney wrote on Instagram alongside a photo of herself and Robert at graduation. “Until we meet again.

“Missing you will be forever but forever thankful!” Rob tweeted. “#RobertSrRobertJr.”

While this is understandably a difficult time, we’re glad the Kardashians have each other to lean on during this tough anniversary.

SourceKhloe Kardashian TwitterKim Kardashian TwitterKourtney Kardashian TwitterRobert Kardashian Twitter