Dave Chappelle's interview in this clip corroborates the alleged cousin's story.

Here's Dave Chappelle's cousin telling a story about how she believes Dave Chappelle was replaced by someone else.

 https://www.facebook.com/latanster/posts/1043604415781882

 https://www.facebook.com/latanster/posts/1043606119115045

https://www.facebook.com/latanster/posts/1043606845781639 

 https://www.facebook.com/latanster/posts/1043616629113994

 https://www.facebook.com/latanster/posts/1043652825777041

https://www.facebook.com/latanster/posts/1043746235767700 

https://www.facebook.com/latanster/posts/1043720072436983