We know that a former owner of 5a died so there could be a link to some of the alerts in 5a but the alerts in the rented villa and to the McCann clothing is something yet to be explained?
You left the rental car off that list. There could be a link to some of the alerts in 5a the alerts in the rented villa, the rental car and to the McCann clothing these are something yet to be explained.
In my analysis and what Grimes says you would have to consider the 2 alerts to the McCann clothing and to Cuddle Cat were ruses for there was no attempt to retain the items and no forensic testing was attempted on them.
The pattern of the others - The wardrobe area, the garden the booth, and the key fob could be suggestive of a body on the move.
The alert associated to blood in the tiles is suggestive of an accident (but only minor amounts of blood).
Whether "the accident" and "the body on the move" are linked was not proven forensically.