Horatio Liked Yelina but Yelina married Ray who is Horatio's brother. Yelina and Ray have a son named Ray Jr. Ray was an under cop and did bad things and he ended up having a baby with Suzie named Madison.
heratio lied to yelena that maddison was his daughter because he didnt want her knowing it was her dead husband ray's. Ray was a UC and tweaked with suzy. So maddison had cancer or sumthing and needed bone marrow. But heratios wasnt a match so he told yelina the truth and ray jr went in and donated it.