Last week, Hollywood mourned the death of actor Anton Yelchin when he was tragically killed in a freak accident at the age of 27. For Kat Dennings, coming to terms with his death has been especially hard since she was very close to him.

Part of Dennings’ grieving process has involved taking to social media to post about him and sharing pictures of the two of them together.

"Anton Yelchin was one of my best friends,” the actress tweeted. “Can't say anything that conveys what this feels like.”

She then posted several pics of her and Yelchin and captioned those shots with “I miss you so much,” and “Forever.”

In one pic he is posing with his arm around her and making a funny face.

“Best pal. I got nothing.” Dennings captioned that photo.

As we reported, Yelchin was killed last week after getting pinned between his car and mailbox.

His acting credits include the Star Trek reboots, ER, Curb Your Enthusiasm and Law & Order: Criminal Intent.