We had a guy on the Network team that I once worked on, I had worked with this guy on multiple projects, he had some health problems in the past but seemed to have the resolved, he came into the company gym early on Saturday morning, died of some heart issue, he was found Monday morning when the first guy on the team came to work, he had been dead for a little over 48 hours, needless to say the guy who found him on Monday morning was pretty shocked.
The police used his badge swipes to know when he first came to the office on Saturday morning.
How do you know when he died?