So I can't take credit for this theory as I saw it posted on instagram.
The theory is that Carl and Michonne raided Mary (from Terminus) house while Rick was recovering.
The evidence is that the house had pictures of sunflowers and there were many sunflowers present at Terminus. Ok a bit of a stretch.
However the picture that Michonne looks at (in that house) that is all defaced is a picture of a woman that looks just like Mary.
The theory is that the writers were dropping a hint that Mary lived in that house, killed her family, defaced the picture and eventually ended up at Terminus. To keep a link to her past life she planted sunflowers at Terminus.
Its an interesting theory and this link below has screencaps that will make you think.
http://comicbook.com...-from-terminus/
Any thoughts on this?
(I don't think this has been posted before)