Source:
The GuardianA 16-year-old girl has been jailed and her younger sister given a youth rehabilitation order for their part in a plot to kill their 89-year-old grandfather so they could steal his money.
The elderly man, who suffered from dementia, was attacked with bricks at his bungalow in a village near Winchester, Hampshire.
In the weeks before, some of those involved in the plot had researched how to kill him on the internet using Google searches such as "1,000 ways to die", "poisonous toadstools" and "easiest way to kill an old person".
Last month, the elderly victim's adopted daughter, 49, was jailed for 17 years and her son, 19, was given an indeterminate sentence in a young offenders' institution after being found guilty of conspiracy to murder.
Read more:
http://www.guardian.co.uk/uk/2011/sep/29/sisters-sentenced-plot-kill-grandfather
I'd support rehabbing juveniles convicted of theft or vandalism...but conspiracy to murder? Probably an untreatable psychological problem.