Well, at least he is aptly named.
It has been my experience that actual assassins very rarely call you on an easily traceable phone several times before coming to do the job.
Or maybe none of this actually happened, and it is just a story put out by the Secret Service / FBI trying to make us peasants think that they are actually doing their jobs rather than being part of the cabal wishing to get rid of Trump.
Too bad the FBI/DOJ/FBI can’t use this cell phone tracking technology to discover the person who planted the pipe-bomb at the DNC that nearly killed Kamala Harris on Jan 6, 2021. /S