When someone in the public eye passes away, the media will ask other celebrities who knew the person for a comment. Usually, they get a very nice, simple few sentences about how highly the friend thought about the deceased and what a sad loss it is.
I came across this 2012 video by chance yesterday. It's Ron Howard talking to Entertainment Tonight after learning that day that Andy Griffith had died. And they don't get a few warm sentences from him -- they get four wonderful minutes, tender, thoughtful, insightful, eloquent and lovely. And the only reason the clip is four minutes is because they edited it down.
By the way, it shouldn't go overlooked that they had worked together almost half a century early, when Howard was just a little boy -- and stayed in touch all that time since. They did work together on occasional "reunion" events for The Andy Griffith Show, but this clearly was just a strong friendship. And not just between the two of them, but he talks about his father staying in touch with Griffith all that time.