I dont think the major crime committed by the burglar was the attempted robbery. The major crime was when he tied up the family and then threatened their lives. This is morally, very serious.
I'm not married, but if my wife and kids had been tied up when I arrived home and the burglar was still there, one of us is going to die or get seriously battered. Plain and simple.
A lot of people on this forum think that Mr Husain would've been thinking in a calm and coherent manner. The moment he knew his wife and kids had been tied up, he would would've been in enraged, to the point where nothing else matters to him, apart from destroying the burglar.
Notice the word 'destroy' - not kill or harm, but destroy. This would account for the cricket bat breaking. If he just wanted to kill or harm the burglar then he would've been able to achieve this without breaking the bat and using the metal pole would've been able to kill the burglar with ease.
I, for one, totally sympathise with what Mr Husain did. I'm not saying it's right, but I would've probably done exactly the same thing, upon finding my wife and kids tied up.