Rob Kardashian’s text messages that triggered a criminal threat investigation are strewn with disparaging references to gays, Mexicans and African-Americans.

TMZ broke the story … LAPD’s Threat Management Unit is on the case after Rob sent some ominous messages to Pilot Jones, the guy who sold pics showing him making out with Blac Chyna and insinuating he might be the father of her unborn baby.

The pics set Rob off. We’ve obtained the text messages that Jones gave to LAPD. (tmz.com – Staff) Click here to read the controversial text messages!

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