President Donald Trump has argued that the recent caravans are a threat to national security.
"The city of Chicago lost a doctor, a pharmaceutical assistant and a police officer — all going about their day, all doing what they love."
“The evidence was absolutely mind-blowing to me," said the lead researcher.
"Downtown is a very populated area, and so to have multiple gunshots fired in an area like this is concerning."
The handrail had 120 volts of electricity going through it, more than 10 times the amount needed to power its lights, according to the complaint.