Although Leonard Nimoy and William Shatner remained close friends following the end of Star Trek, Shatner is getting flack for his inability to attend Nimoy's funeral on Sunday in Los Angeles.
Shatner took to Twitter to explain his absence, saying that he was fulfilling a commitment to attend a Red Cross Ball in Florida, and that his daughters would attend the ceremony in his place. He starred as James T. Kirk in the original Star Trek series.
Nimoy, who played Spock, died on Friday after a long struggle with chronic obstructive pulmonary disease. He was 83.
In lieu of attending the funeral, Shatner hosted a Twitter chat to remember Nimoy, and to answer fan questions about his relationship with the legendary actor. Read the highlights, below: