Origin of Harry's powers / ways to kill a wizard

[sonjahric]

No: HPFGUIDX 31017

1. Recently, several members speculated that Harry might have 
received all of his powers from Voldemort (that Harry might have been 
a squib)  I disagree.  In SS/PS, Chapter 4 - Keeper of the Keys, 
Hagrid said, 

"Stop Lily an' James Potter's son goin' ter Howarts! Yer mad.  His 
name's been down ever since he was born."  

This obviously proves that Harry was born with the powers that he 
has.  (Just my opinion: I believe that Harry was prophesized to be a 
great and powerful wizard that would eventually take down Voldemort 
and Voldemort went to kill Harry and not his parents.)

2.  Several members also recently discussed the ways (other than 
Avada Kedavra) to kill a wizard.  Someone said that besides the usual 
ways (normal ways to kill muggles) there are probably other magical 
ways.  (Implying that wizards can die from the same things that kill 
muggles.)  In most circumstances, I do not believe that a wizard can 
die in the "usual" way.  In SS/PS, Chapter 4 - Keeper of the Keys, 
Hagrid said,

"'CAR CRASH!' roared Hagrid, . . . 'How could a car crash kill Lily 
an' James Potter? It's an outrage! A scandal!'"

This is assuming that what Hagrid says is accurate, but I believe it 
is.  Sorry I didn't post a  few days ago when this was discussed, but 
every time I go to post, for some reason my modem disconnects.  Maybe 
Peeves is terrorizing me!