It's thought that actors are always seeking that one role that will make them immortal...
...even a notorious role like murderer of the President of the United States!
The writer of this never-reprinted tale from Charlton's This Magazine is Haunted #16 (1954) is unknown, but the illustrator is believed to be Ed Waldman, and that the story was part of the unpublished inventory Charlton acquired when they purchased both the copyrights and artwork for the cancelled Fawcett Comics line (including This Magazine is Haunted).
BTW, the narrator of the story, the Mummy, was the host of sister Fawcett comic Beware! Terror Tales, lending credence to the theory this was a Fawcett-comissioned tale.