In the flashbacks to after Annalise Keating lost her baby, Sam Keating takes her home where she wants to adopt Christophe Edmond. The adoption agency, however, doesn't find her a good fit and denies her request. She then tries to kill herself by overdosing. Bonnie finds her.
The adoption is the same adoption which Governer Lynne Birkhead mentioned in a previous episode.
Sam tries to make contact with his son, Gabriel Maddox, however, his ex-wife stops him.
As a way to live up to the promise that Sam had him make to him about protecting Annalise, Frank gives Sam some advice: to give up on his son (Gabriel) and focus on Annalise.
While Annalise Keating is telling Gabriel Maddox about his father, Sam Keating, she reminds him that he wasn't a good man which is why he left him and which is the reason what led to his death. "Sam broke my heart, Gabriel. Just like he broke yours. He betrayed us both."