Today's devastating news is heartbreaking. Jo was a good colleague who was elected to Parliament at the same time as me.
She was a graduate of the University of Cambridge so is well known to many people here.
Jo was just doing her job: standing up for the people and the community she represented.
It is too soon to answer the questions about how and why she died. On this terrible day our hearts go out to Jo's husband and two young children. Our thoughts are with them as we all struggle to take in this awful, incomprehensible news.