I agree that it’s not best practice to pick up and move a suspicious device, unprotected by armor. We don’t know much at this point, I guess we’ll know pretty well what happened over this coming week.
However, what we do know is that some evil bastard planted a bomb that could have killed children riding bikes but he/she/they (usually a loner male) decided their perceived grievance with society justified the carnage.
This is the state police department! Haven’t they received millions of dollars in Federal grants for SWAT teams and anti-terrorist measures?
Apparently, they can send a dozen guys with machine guns to catch a teenager selling dope, but when an serious incident happens they send one guy in a car.