somebody went to extraordinary lengths to disguise their identity before they went to church, they disguised themselves so well that the gender of the person is still uncertain, that is not something many burglars would do, they had to obtain all that gear they are wearing and it does not look very comfortable or easy to move around in, burglars surely want to be able to flee quickly if disturbed and the person in that disguise was not going to be running very fast, this to me shows that whoever it is with whatever motive they were determined not to be identified and must have known how extensive the CCTV inside church was,
they do not seem overly nervous to me, just casually strolling around checking doors and in no hurry, they have no bag that I could see with which to carry stolen items, and surely anybody with any common sense would know that a church that had extensive CCTV is security conscious and anything valuable is going to be well locked away and cash would not be left on premises,
therefore logic to me would be he/she was not their to burgle but for other purposes,