Abraham Omotoso, 27, stabbed 34-year-old Mohamed Al-Zufairi in the chest in front of horrified shoppers in Wealdstone High Street in Harrow, northwest London.
Omotoso was seen smiling as he fled the scene in a black Range Rover but was arrested the next day as he tried to board a flight to Lagos in Nigeria.

He had confronted Mr Al-Zufairi because of 'bad blood' between his older brother and Mr Al-Zufairi's older brother. Omotoso, who has a previous conviction for carrying a knife, was cleared of murder but convicted of manslaughter after two trials at the Old Bailey.
Jurors heard Mr Al-Zufairi had taken his young daughter to the shop to buy sweets at around 6.50pm on February 27 this year.
CCTV cameras captured him waiting outside the shop as Omotoso, wearing a parka with the hood pulled up, got out of a Range Rover and
After a short argument Omotoso pulled out a knife and stabbed Mr Al-Zufairi once in the chest before running off.

https://www.google.co.uk/amp/s/www.dailymail.co.uk/news/article-4977562/amp/Man-grinned-stabbed-father-death.html

Hmmmm.

EdoBozz:
Hmmmm.