Chicago is seeing an increase in fatal meth overdoses. Here’s why.

A Mexican Army expert shows crystal methamphetamine paste at a clandestine laboratory in the Mexican state Baja California. Most meth in Chicago area now comes from Mexican drug cartels, authorities say. (Getty Images)

He was a 41-year-old, college-educated mortgage broker.

But his station in life didn’t prevent the man, who lived in a Rogers Park condo, from becoming a regular user of methamphetamine, a stimulant that causes euphoria but also dental problems, memory loss and worse.