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.
A coma can result from a skull fracture.
( z1 possible :ARG1 ( z2 result :ARG1 ( z3 fracture :ARG1 ( z4 skull ) ) :ARG2 ( z5 coma ) ) )