Fugitive killers of Bangabandhu

I appreciate Jamshaid Taher's letter on the above subject published on August 11. I wonder why the taskforce is taking so much time to bring an end to this subject. We know that the 6 fugitive killers are hiding in different countries including Middle East, Canada and US. What benefits are their host governments enjoying by giving them shelter? We must bring the killers to book as early as possible.
Emran
Lalmatia, Dhaka