Britain’s youngest killers: How two 12-year-old boys who hacked Shawn Seesahai, 19, to death with a machete join harrowing roll call of child criminals including Mary Bell, Robert Thompson and Jon Venables [Video]

03:22 EDT 11 Jun 2024, updated 03:22 EDT 11 Jun 2024

When two machete-wielding 12-year-old boys were found guilty yesterday of the brutal murder of teenager Shawn Seesahai, who was hacked to death in a park in Birmingham in November last year, they joined a long line of child killers. 

The pair, who cannot be named for legal reasons, are two of the youngest ever convicted murderers in the UK.

They are also Britain’s youngest ever knife killers, joining a harrowing roll call of child criminals which includes Robert Thompson and Jon Venables. 

However, the most shocking aspect of the case is undoubtedly the boys’ age, with it being rare for anybody so young to be tried for such a serious offence.

As the boys await sentencing, MailOnline takes a look at some of the country’s youngest, and most depraved, killers.