Published by
The Detroit News
The Detroit News
DETROIT — The online presence of Jennifer and James Crumbley might have seemed normal before Tuesday, when authorities say their teenage son opened fire in the halls of Oxford High School, killing four classmates and wounding seven others. Before Tuesday’s tragic events, videos show the father and son teaming up for a boyish prank on mom. There is a mother’s glowing yet crass letter praising President Donald Trump as well as concern over her then 10-year-old son, who was struggling with school and needed tutoring. There is that same 10-year-old making videos about basketball, video games and a…