Dr. Kermit Gosnell's decision follows five weeks of prosecution evidence. Defense lawyer Jack McMahon has done his work by challenging witnesses on cross-examination.
The jury is expected to hear closing arguments on Monday.
The 72-year-old Gosnell is charged with killing four babies allegedly born alive at his clinic. He is also charged in the 2009 overdose death of a 41-year-old refugee who died months after coming to the U.S.
A string of former employees have testified that Gosnell relied on untrained, unlicensed staff to sedate and monitor women as they waited for abortions.