Conversation so far:
Are Everblack and Abysmal album titles for the band The Black Dahlia Murder?
Studio albums. Everblack, 2013. Abysmal, 2015.
Which one was released first, Everblack or Abysmal?
Everblack, 2013
Did Everblack by the band The Black Dahlia Murder do well?
The album sold 13,000 copies in the United States in its first week of release and debuted at position #32 on the Billboard 200
Did Abysmal by the band The Black Dahlia Murder do well?
Are The Black Dahlia Murder band  working on anything new?
In a post to Twitter, The Black Dahlia Murder frontman Trevor Strnad reports he has finished his work writing the bands new album due out late in 2019 or early in 2020 via Metal Blade Records.

Question: Why did Knight leave the band?
Self-contained rewrite: Why did Knight leave the band The Black Dahlia Murder?