Child star Danielle Spencer, who portrayed Dee Thomas on the 1970s comedy TV series "What's Happening!!," has died at 60, according to former co-star and friend Haywood Nelson. In an Instagram post, Nelson said Spencer died Monday in Virginia. No cause of death was included in the post, which featured a photo on Spencer. Nelson told NBCLA Tuesday that he spoke with Spencer's mother, who confirmed she had died. He described Spencer as a "brilliant person who loved animals" and moved on from acting to become a veterinarian. Nelson, who played Dwayne as Spencer's "What's Happening!!" co-star, told NBCLA he...