"At the heart of this has been an abduction".
Some may choose to read this as meaning "at the heart of this the parents are involved" but I take it at face value.
So if it is more than a little ambiguous what is your take on its face value. The part where it says "she has been abducted" is rather clear, but it was preceded by "However she left that apartment ..."
To me that means whatever reason you think she left the apartment , ultimately she was abducted.
"Howevers"
wandered out and then abducted.
apartment burgled and then abducted.
killed by Kate and then abducted.
died by accident and then abducted.
targeted by kidnappers and then abducted.
wandered out, had an accident, picked by a stranger to help her and then abducted.
Could be other howevers?
Thought of another however:
wandered out, went to the beach, stung by a Portuguese Man o War, hurt, picked by a stranger to help her, died in his arms and then abducted. lol