08 April 2019 Monday. 19:17:46 UTC
Usual shit - some characters are in different encoding to avoid being hit by the spam filter. Here's a tiny selection from the email:
You are very Ƿerverted!
If you want me to delete both files and keep the secret,
you must send me the Bitcoin payment.
I give you 72 hours only to transfer the funds.
If you don't know how to pay with Bitcoin,
visit Google and search - how to buy bitcoin.
Send 2,000 USD (0.407531 BTC)
to this Bitcoin address as soon as possible: