Prosecutors are expected to now seek the death penalty for Gosnell.
The 72-year-old was charged with killing four premature babies by severing their spinal cords after they were born alive in his Philadelphia clinic. He was acquitted of one of those charges and convicted in three. Gosnell was also found guilty in the accidental death of a patient who died after receiving an abortion and a lethal mix of sedatives and painkillers at his clinic.
Gosnell's lawyers argued during the trial that no babies were born alive in the clinic.