OKLAHOMA CITY (AP) — The Oklahoma Court of Criminal Appeals has upheld the murder conviction and life without parole sentence of a man convicted of killing a Northeastern State University chemistry professor.

The court on Tuesday rejected a dozen appeals from 37-year-old Joshua John Schneider, including lack of evidence, improper evidence, prosecutorial misconduct and ineffective assistance of counsel.

Schneider was convicted in Cherokee County of killing 38-year-old Tiffany Maher in May 2013 after meeting her on an online dating website. Schneider was also convicted of arson and larceny in th...