I'm sorry for your loss, but yaar, put your anger into action and collect EVIDENCE against the MQM.
Dheela nahi chorhna.
I have done the following and encouraged to do others the same:
1. File a complaint with London Metropolitan Police using the online form:
https://online.met.police.uk/report/report.php
2. Report MQM's terrorist cell based out of Edgeware to Mi5:
https://www.mi5.gov.uk/home/constant-nav-items-holding/contact-us/contact-form.html
3. Appeal with to the British High Commission in Pakistan to put this scumbag behind bars:
islamabad-general.enquiries@fco.gov.uk
4. Spread awareness to others and tell them to do the same.
I have done all four. People like Zahra Shahid knew very well they'd get killed. People like you or me complaining about this may get killed too. But aisi burai maarne ke liay sar pe kafan baandh kar hi nikalna parhta hai. Peeche nahi hatna.