When should Ms Lucy Black racist be arrested?

In UK a 21-year-old has been arrested after allegedly posting mocking comments about Bolton Wanders football player Fabrice Muamba who got a heart attack on the pitch and was brought to hospital for treatment.

However, when two white UK girls, Samantha Sykes and Kim Frank, allegedly were murdered by Ahmed Otak in what looks like a clear case of islamic hate crime inspired by Sharia, a black racist posted the following:

Klevius question: Is she already arrested?!



.
.