BRETT PARTRIDGE
Take out "B, T and T" out of his first name you are left with RE
Add "D" from his surename you get "RED"
What you are left with in his surname are "PARTRIGE
Rearrange them and you get "TIGER"
RED TIGER
The last letters you are left with are "T and T" from his first name.
T and T could possible allude to Tiger, Tiger.