Kylie Jenner, Tyga, Blac Chyna

When her brother got into a relationship with Blac Chyna, she expressed her concerns to him because he had been warned about her being violent.

The lawyer for Chyna asked if she was in a relationship with her. According to Kylie, she wouldn't have considered Chyna a close friend, but she did see a 6 inch scar on his arm that was claimed to be a knife wound.

tyga and blac chyna 2012

The attorney continued questioning, and it was revealed that the violent knife attack was caused by drugs and alcohol.

Rob told her that he was going to continue to date Chyna despite her concerns. I felt it was my duty to express my concerns, but it was up to him.

Kylie Jenner and Tyga Together Getty

We have heard from Kris, Chyna, and now Kylie in the case. We reported that Kim was in D.C. with Pete Davidson.

TMZ.com

Last week we saw Tokyo Toni get banned from the courtroom for bashing theKardashian family and then she threatened the judge, though she later said the threat was aimed at Kris.