Video of beaten 5-year-old AJ Freund on mom's phone helped crack case, authorities say

A video of a badly beaten 5-year-old Crystal Lake boy on his mother’s cellphone helped crack the investigation into his killing, according to court documents.

The video on JoAnn Cunningham’s phone, taken more than a month before Andrew “AJ” Freund’s death, showed the boy had severe bruising on...