I thought we already had established that EA's dad was the real estate guy, not EA. This is pretty easily established with a quick google:
https://www.linkedin.com/pub/enrique-i-arochi/7/91/b82
Maybe EA just tagged along with his dad sometimes and was trying to learn the business on the side. It's not unusual for kids to give a shot at what mom or dad are doing if they can't find their own thing in their 20s.
Also, why all the sinister assumptions about EA's parents? Haven't we also established that both were out of town that weekend? Given that it was a holiday weekend, it's likely that they didn't come home until late Sunday or, perhaps, even Monday, the actual Labor Day holiday.