被告陈瑶的邻居确实说有一个女人神色慌张地从被害人家里出来，而且掉了一枚纽扣。
bèigào Chén Yáo de línjū quèshí shuō yǒu yī ge nǚrén shénsèhuāngzhāng de cóng bèihàirén jiālǐ chūlai ，érqiě diào le yī méi niǔkòu 。
The defendant Chen Yao's neighbor indeed did say that a woman had come out of the victim's home looking flustered. Also, that the woman had dropped a button.