LOS ANGELES — Matthew Morales boarded the Metro Red Line at MacArthur Park as classical music blared over the station loudspeakers.
It was rush hour on a Tuesday afternoon, and Morales made his way to a back corner seat and unfolded a tiny piece of foil with several blue shards of fentanyl. As the train started west, he heated the aluminum with a lighter and sucked in the smoke through a pipe fashioned from a ballpoint pen.
Doors opened and closed. A few passengers filed in and out. A grain of the opioid fell to the floor. He concentrated on trying to pick it up, then lost track, as his body went limp. His shoulders slumped and he slowly keeled forward.
