Rob Reiner's close friends, including Billy Crystal and Albert Brooks, are showing up to be "fiercely" protective of the late director's kids Romy and Jake in the wake of the murders, a source tells PEOPLE.

Kathy Bates rose to prominence with her Oscar-winning breakout role in Rob Reiner's adaptation of Stephen King's "Misery" in 1990.

Rob Reiner spent his life trying to fix what he saw as America’s shortcomings. In an interview shortly before his death he explained why he was optimistic America could be better.The actor and director was found dead on Sunday along with his wife Michelle Singer Reiner.

Rob Reiner is being remembered as "grateful and generous" by Dennis Maguire, who worked with the late director on 1990's 'Misery.' Maguire added of Reiner's death, "It's just a terrible, tragic thing.

Rob Reiner's struggle to find love inspired "When Harry Met Sally." When he met his future wife, Michele, on the set, he changed the film's ending to a happier one.

Roger Ebert said he “hated, hated, hated, hated, hated” Reiner’s 1994 film “North.” The director took it in stride.

"All in the Family" star Rob Reiner and wife Michele found stabbed to death in Brentwood home. Rob's son Nick Reiner was later arrested and charged with murder.

Conan O’Brien regrets not stepping in during the heated argument Rob Reiner and his wife, Michele, had with their son Nick.