theory: Gaara a uzumaki?
gaara could be a uzumaki, he has the classic red hair
Not just looking at his hair, think about gaara's absolute defence, the sand that protects him automatically... his mothers jutsu..
she combined her chakra with gaara's charka(but her chakra still has her will and acts independently),. that would take someone with strong life force, and uzumakis are known for their strong life force( to those who would talk abt gaara's brother and sister, i have never seen three siblings from the same parents wit three different hair colours, so im saying that they dont share the same mother.)
uzumaki's are also known for being abit wild, but anyone who has seen flashbacks of nagato will know that not all of them are like that(yes nagato was a shy lil ***** wen he was young).
about him dying after his bijuu was removed, just remember that he isn't a pure blood uzumaki, the same as naruto having yellow hair and not red....
another point....i have never hear anyone say gaara's surname? if anyone knows it, plz state so