Will “steroid defense” work in case linked with murder committed by Oscar Pistorius?

Oscar Pistorius acknowledged that he had murdered his girlfriend Reeva Steenkamp. But the athlete underlined that he had killed her because he had mistaken her for a thief.
Police officers try to define why the Olympic athlete really murdered Reeva Steenkamp. They found anabolic steroids at the athlete’s home.
Since anabolic steroids have been discovered in Oscar’s bedroom, it would be probably argued that steroids caused uncontrolled aggression in the sportsman. Steroids would be blamed for the murder.
In fact, you should comprehend that it is quite hardly to state that anabolic steroids are responsible for aggression and violent behavior. Researches related to this issue are quite limited. According to results of several researches, users of steroids are predisposed to aggression, paranoia, jealousy, etc. It is claimed that those who use steroids are more likely to commit crimes than those who have nothing to do with these medications. But it is necessary to take in consideration that steroids may only contribute to aggression. Just these products alone can’t lead to aggression. They turn out to be only factors that contribute into uncontrolled aggression. Other factors should be also present for appearing of aggression. Circumstances play essential role in such situations. So, it is even impossible to define whether steroids cause aggression or certain circumstances. Violent cases should be reviewed as a complex of steroid use and circumstances.
It is also claimed by experts that enhanced levels of testosterone are connected with aggression in some persons. So, it is important to underline here that while certain persons with increased testosterone levels experience aggression, others with high testosterone levels are not predisposed to uncontrolled aggression. This effect differs from one person to another.
You can see that the link between intake of steroids and crimes is a complicated issue. Specialists have not studied this condition well enough to engage it. So, if defense lawyers of the Olympic athlete want to argue that anabolic steroids have made their client to murder his girlfriend, they should recognize that they are going to use controversial affirmations.