Are Kane and Taker half brothers?
No it's all a part of the storyline that WWE portrays as real
Did the WWE ever explain why Paul Bearer was Kane's father and since the Undertaker's parents died when he was young and Kane is his brother would it mean Kane's parents died as well?
I'm not sure if it was explained, but the whole Undertaker/Kane story about their parents is only a very long storyline, it didn't happen. I can't even find reliable sorces, that say, they are related. I've found many that say they aren't: brothers, half brothers, step brothers, cousins, or anything else. The storyline is that paul bearer had an affair with undertakers mum when he was young(this is true i have it on tape it…