could be a lot of things, zillow sucks for sales records and get them wrong routinely.
you are right, usually the astronomical price is the foreclosure price, then the next price is it selling to the new buyer and it’s more reasonable.
For free you could go look at the records yourself or you could order them for about three bucks online. A search online will yield clues even if you don’t buy the records.
If you want to send me their address in a private message I’ll run it for you and post the answer without listing the address, or you can run it yourself, getting their name from the gis and then running a grantee search on riverside county’s website, if the county does not show a nod and a not, then it’s just bad data from zillow, wouldn’t be the first time.
