Richard Harrison -- famously known as "Old Man" on "Pawn Stars" -- has died, according to his son, Rick Harrison.
''The Old Man' Harrison passed away this morning surrounded by those he loved," Rick said Monday morning ... "He will be tremendously missed by our family, the team at Gold & Silver Pawn and his many fans the world over."
"He was my hero and I was fortunate to get a very cool ‘Old Man’ as my dad."
The circumstances surrounding his death are unclear. However, Harrison's appearances on the show over the last couple years were slim to none.
'Old Man' moved to Vegas back in the early '80s and opened the Gold & Silver Pawn Shop with his son, Rick.
When the producers found the family and turned their daily lives into a show, it became an instant success. It's been on the air since July 2009 with 'Old Man' as one of the fan favorites.
A rep for History Channel tells TMZ, "We are deeply saddened by the loss of our friend Richard ‘The Old Man’ Harrison, a beloved member of the HISTORY and ‘Pawn Stars’ family. He will be greatly missed for his wisdom and candor."
Harrison is a Navy veteran and often talked about his military career on the show.
7:20 AM PT -- Law enforcement sources tell TMZ ... Sunday's arrest was the second time deputies went to Heather's home that day. We're told they were there around 6 PM for another disturbance, but determined no crime had occurred.
Heather Locklear was arrested Sunday night for battery on a police officer ... and this is the second time.
Locklear was taken into custody at her home shortly before midnight and booked for 2 counts of misdemeanor battery upon an officer and emergency personnel.
The original 911 call was for a disturbance. Law enforcement sources say she was heavily intoxicated when a family member called. Heather, who we're told was extremely agitated, punched a responding deputy who was trying to separate Heather from members of her family.
Paramedics arrived and, while putting her on the gurney, she kicked an EMT.
Heather was taken to a hospital to get checked out and then was taken to jail where she was booked. She's being held on $20,000 bail.
Locklear was placed on an involuntary psychiatric hold last week after allegedly choking her mom and attacking her dad.