Reba Season 4 Episode 16 Who Killed Brock? ( Air Date 2005-02-25 ) Genre Comedy category. Overview "While being watched by Reba, Barbara Jean's new dog ""Broq"" goes missing from the backyard. Heartbroken, Barbara Jean goes to a psychic who foolishly tells her that one of her own family members is to blame. A mystery story line with hilarious flashback occurs leading to the true demise of Brock the dog.".