AMNA NAWAZ: We have a passing of note to share, someone whose name you may not know, but whose work you have seen frequently here on the "News Hour."

For more than 40 years, Bill Hennessy captured history with his sketchbook.

His work often went where cameras couldn't, offering the first draft of high-profile legal moments, from Iran-Contra, to the Clinton impeachment, trials at Guantanamo Bay, and countless arguments at the U.S. Supreme Court.

He spoke to the "News Hour" in 2009 about how he approached his work.

BILL HENNESSY, Sketch Artist: But I try to delve deeper.

I look for the details.

I look for something that will give it more.

I find myself as much a journalist in that regard, looking for that special angle on it, on the visual that will help them that much more.

I certainly came into this as an artist, but I think I have had a unique opportunity to learn journalism from the people who actually -- who I worked with, both the photojournalists and the written journalists, that they have helped me understand my purpose and my responsibility in being -- telling the story accurately and truthfully, honestly and responsibly as you can.

AMNA NAWAZ: Bill Hennessy died on Monday.

It was his 67th birthday.