The list of seven suspects is a fake. It's essentially a hit list for Red john. 7 people that are disposable for Red John, that have served their purpose or need to be removed.

Patrick Jayne knows this, he's pretending to have fallen for Red John's plan and he gave Lisbon the list knowing she would leak the information to her team

Kristina Frye went missing with Van Pelt supposedly providing protection.

Patrick Jayne is fully aware who Red John is.

Grace Van Pelt was introduced in the first episode. She's shaken his hand.

Red john has always been a member of the team- the finale episode will be shocking as it shows an enormous betrayal. red John would want to play at the centre of the action and where better than within the team itself.

Grace will be leaving the series, because she is Red John.

The list of seven is a red herring. red john has never been a man. Red Johns followers have played the roles assigned to them to cover her identity.