Fast and Furious 8 star Vin Diesel is still grieving and clearly hasn’t moved on from the death of his close friend and late actor Paul Walker.

It has been almost three years since Walker died, but Diesel is still emotional when asked about Walker or the late actor’s Fast and Furious character Brian O’Connor. For the very first time, the actor addressed the clamor to bring back O’Connor.

“It’s a heavy topic and you are starting to make me sad again … Pixels versus people. Nobody else has this story! No one else has ever said it although artificial intelligence is close to it. You just got the real s**t that only somebody in my position, that is of flesh and bone, could see coming and could be sensitive to,” he said.

The actor admitted to news.com.au that he considered not finishing Furious 7 when Walker died, but he did otherwise because of the Furious fans. However, Diesel said that by doing so, he also proved that viewers don’t need an actor in the flesh and that freaks him out.

Diesel was referring to the CGI used to complete Walker’s unfinished scenes. When Walker died in a tragic car crash in 2013, Fast and Furious 7 has yet to be released. His brothers, Cody and Caleb, filled in for the actor. The production also used CGI of Walker.

Meanwhile, Diesel also revealed that Fast and Furious 8 departs from the previous seven installments. He said the eighth sequel will be very dark. The Billy Lynn’s Long Halftime Walk actor said Dominic Toretto will be coming off a lot of emotions from Furious 7.

Reports also indicated that are several newcomers in the franchise. Fans will see Helen Mirren (Woman in Gold), Charlize Theron (Mad Max: Fury Road) and Kristofer Hivju (Game of Thrones) in Furious 8. Apparently, Theron and Hivju will portray villain roles. Mirren, on the other hand, will play a role that is connected to Ian Shaw (Jason Statham).

Meanwhile, Straight Outta Compton director F. Gary Gray will helm Furious 8. Diesel also earlier teased that the first official trailer of Fast and Furious 8 will drop on Dec. 11.

Fast and Furious 8 will hit theaters on April 14, 2017.

Stay tuned for the Fast and Furious 8 official trailer here.