Almost everything that Caitlin and Jesse Baker know about their mother, who was mysteriously murdered 23 years ago when they were small children, comes from memories shared by relatives and from fading family photos of the smiling, petite brunette.

Over the years, aunts and uncle told them stories about their protective and generous sister. Their father recalled the loving wife who seemed to live in her pink sweat suit. Their grandmother shared pictures of their mother’s favorite horse, Molly, and tattered newspaper clippings of articles she wrote as a student journalist.

But no one has been able to answer the question that has tormented the Baker children for years: Who entered their North Austin home on Jan. 13, 1988, and beat Debra Masters Baker to death?

“I’ve never really seen an investigation happen,” said Jesse Baker, now 31. “It’s sort of just been fits and spurts over the last 20 years.”