Carl Smith collided with a concrete lamp-post while skating and suffered a skull fracture that caused a coma. When he failed to regain consciousness, his parents on August 8 consented to his life support machine being turned off.
Carl Smith suffered a spine fracture that caused a coma
( z1 suffer :ARG0 ( z2 person :name ( z3 name :op "Carl" :op "Smith" ) ) :ARG1 ( z4 fracture :ARG1 ( z5 spine :part-of z2 ) :ARG0-of ( z6 cause :ARG1 ( z7 coma ) ) ) )