LOS ANGELES — Grayson Murphy knows what it's like to go into the bathroom, look in the mirror and see another version of himself.
Because he's standing right there.
That familiar face brushes his teeth in unison every morning, after always getting up at the same time. The practically indistinguishable pair will go on to eat the same breakfast, complete the same football practice, attend the same classes, finish the same homework and wind down at the same bedtime.
