The perpetrator was Anti Muslim and Anti Christian too, hence why he attacked a Christmas market in a largely secular country.
His twitter account even contained the wish that Angela Merkel was sentenced to the death penalty for allowing mass immigration.
He followed/praised Geert Wilders, Marie Le Pen, Tommy Robinson etc.
Luckily whilst the usual sorts were trying to exploit the tragedy to whip up hatred, others were archiving his posts.
The below is a post (from his alleged twitter account) that repeats the extremely offensive and Anti Christian idea that Jesus was the result of Mary having an affair.
His alleged Twitter account is here:
https://x.com/DrTalebJawad