As a tenant (looking at investing soon) I feel somewhat sorry for the tenant who has had his possessions and living area destroyed.
However, he has no right to ask you to compensate him for lost property. That's a matter for his insurance company. If he didn't pay contents insurance, well I guess he'll have to try and sue the perpetrators (although I'm guessing he'll have tio stand in line.)
Having said that, if I was in his shoes I'd be more worried about having a roof over my head, not the lost stereo...
However, he has no right to ask you to compensate him for lost property. That's a matter for his insurance company. If he didn't pay contents insurance, well I guess he'll have to try and sue the perpetrators (although I'm guessing he'll have tio stand in line.)
Having said that, if I was in his shoes I'd be more worried about having a roof over my head, not the lost stereo...