Children have been arrested in the US state of Washington for beating a 64-year-old disabled man to death.

A 12-year-old girl and two 13-year-old girls were charged with 'first' and 'second-degree murder' for beating Reggie Brown after chasing him down an alley on October 17.

The video shown at the sentencing hearing showed the children kicking 64-year-old Brown.

Thousands march for justice for Sonya Massey killed by police! Thousands march for justice for Sonya Massey killed by police!

The autopsy report stated that Brown died of blunt head trauma.

Brown's body was found in an alley at around 1 am on the night of October 17. One of the children claimed that they did not want to beat Brown but were forced to do so by a stranger who threatened them with a gun.

Editor: John Wickey