Who's responsible for Becky's rape and murder?

30 year old Rebecca Dykes ordered the UBER of her death on the night of 16 December 2017 after partying in the Gemmeyze district. This induced to her being sexually abused then strangled to death and thrown on the side-way. Suspect Tarek Houchiyeh admitted being the murderer and was put in custody on the 19th of the same month.