a pacemaker was used in a murder trial. in october of 2001, ivan jones was convicted of murder and sentenced to 20 years in prison. the pacemaker was a silent witness, but it told the jury all they needed to know. >> i'll carry it with me for the rest of my career. i encourage other investigators to give that consideration to pacemakers because time of death is not known and you never know what you'll get from data of a pacemaker. >> these things were never heard of years ago in solving crimes like this, and i think it's marvelous that something like that technology was able to do that. >> seems very ironic that this man had a pacemaker which actually outlived him because it was designed to keep him alive,