Some how he knew that person in the armor was Amy… it is her colors.

 

2017: Only now, rereading the series, do I realize what a HORRIBLE person Phil Conrad truly is. Kicking his, admittedly adult, daughter out of the house over a perceived scratch on a car he bought for himself for her birthday. Then wanting to call the police on her when she comes to take her own property. Jeez, dude!