The issue I currently have is someone has created a crontab process to run on a RHEL 5 box, yet has not left me any privileged user information.  How can I execute this cron job that was setup to run as user foo when I do not have root access?  Also of note this is a non-standard cron job insofar as it is run at arbitrary times.Also where does this job get placed?  I have read that I should not attempt to modify anything that resides within /var/spool , which is fine since as I have stated I have no root access.
Location of crontab job created by non-privileged user
rhel;cron
Invoking crontab -e when logged in as the specific user will open up that user's crontab file.  Edits can be made from that point forward.