Let me see if I'm understanding the situation correctly.
You haven't played on your Minecraft account since April 20th.
The hacker is your brother, who logged into your account on April 21st, and spent 2.4 hours building in your town [shown in my prior screenshot above, placing white concrete, green stained glass, light blue stained glass, light blue carpet, purpur block, purpur pillar, polished andesite, and crimson planks]
Then he takes a break from building to go to the resource world and x-ray 86 diamond ore:
And sells them to the admin shop at spawn:
So that he could go buy more building materials from a player shop:
So he could continue building in your town...
all just to get you banned?