Marc Kasowitz, President Trump’s personal attorney on the Russia case, threatened a stranger in a string of profanity-laden emails Wednesday night.
 
 

The man, a retired public relations professional in the western United States who asked not to be identified, read ProPublica’s story this week on Kasowitz and sent the lawyer an email with the subject line: “Resign Now.’’
 
 

Kasowitz replied with series of angry messages sent between 9:30 p.m. and 10 p.m. Eastern time. One read: “I’m on you now.  You are fucking with me now Let’s see who you are Watch your back , bitch.”
 
 

In another email, Kasowitz wrote: “Call me.  Don’t be afraid, you piece of shit.  Stand up.  If you don’t call, you’re just afraid.” And later: “I already know where you live, I’m on you.  You might as well call me. You will see me. I promise.  Bro.”
 
 

Kasowitz’s spokesman, Michael Sitrick, said Thursday he couldn’t immediately reach Kasowitz for comment.
 
 

ProPublica confirmed the man’s phone number matched his stated identity. Technical details in the emails, such as IP addresses and names of intermediate mail servers, also show the emails came from Kasowitz’s firm. In one email, Kasowitz gave the man a cell phone number that is not widely available. We confirmed Kasowitz uses that number.