The Oscar Pistorius murder trial will resume on Monday morning as pathologist Jan Botha will be the first witness called by the defense and not the double-amputee Olympian. The trial was delayed for the past week due to the illness of one of the judge’s assistants. 

Pistorius shot and killed girlfriend Reeva Steenkamp, a law school graduate and model, on Valentine’s Day of 2013. Pistorius faces a murder charge in which the prosecution looks to prove it was premeditated murder. The South African Olympian says he mistook her for a home invader and acted in self defense. 

It has not been announced when Pistorius will take the stand. 

If found guilty, Pistorius could face a sentence of at least 25 years in prison.