Jeffrey R. Holland Testimony of the Book of Mormon and Joseph Smith

http://www.lds.org/media-library/video/2010-03-08-testimony-of-the-book-of-mormon?category=mormon-messages/mormon-messages-2010&&lang=eng
Jeffrey R. Holland testimony of the Book of Mormon and the sealing of that testimony by Joseph and Hyrum with their deaths.   This is good viewing and a classic talk.  Joseph Smith was a prophet.  He sealed his testimony with his life.