Seems, when he immigrated, he didn't have enough $$$ to start the restaurant, so he became "partners" with the neighborhood "family".
Seems his restaurant lost a lot of money, and grandpa had to get a job to make ends meet. So, he was painting an area water tower. Well, his "partners" wanted their money, but he couldn't pay them.
So, it seems they coerced his work partner, to help him off the tower one day.
Miraculously, he survived.
He would probably be alive today but cigarettes not falling off a job site, did him in. The crane funeral was pretty cool though he went way up high in the sky and down in the hole. RIP