The letter concerning Miya:

The paper is a letter written in English.
"Dear Doctor. Please excuse English.  You write ask us about girl killed our 
son, name Miya Yoritomi.
(Terry only read this far.)
"We not met girl. We not there, but hear story.  Our son, Ken, at station train. 
Girl run into him.  Ken tell girl be careful more. Girl get very angry. Hit Ken 
lots. Ken fall down. Train hit.  Police say girl very brain sick now.  That all 
we know. Our Ken good boy.
"Kyoko Watanabe."