18-month old girl was killed by steroid user

Audrey Allen, an 18-month old child, was killed by Joshua Allen Kruzik.
The baby was killed because she cried in the middle of the night. Joshua Allen Kruzik, an US marine, a friend of Audrey Allen’s parents, decided to spend weekends at their friends’ home. Before he came to their home, he was at a local bar where he drank much alcohol. He had to care about the little girl, when she cried. But Joshua Allen Kruzik beat the child very inhumanely. As a result, the baby got multiple serious head injuries. She died at a local hospital.
David Kohn, the defense attorney for the murderer, confirmed that steroids were responsible for the abnormal behavior of his client. It was confirmed that the killer administered anabolic steroids. Before the incident he attempted to discontinue applying these medicines but he couldn’t do it. The defense attorney stated that anabolic steroids caused “roid rage” in Joshua Allen Kruzik. He couldn’t not control himself and beat the little girl. According to the defense attorney, Kruzik was unconscious. Although he confirmed that Kruzik was ready to take the whole responsibility, he added that he was not guilty.
The little girl’s parents also testified that Kruzik administered anabolic steroids. The mother of the child affirmed that she had syringes at her home. Thus, she injected Kruzik with steroids, when he came. Some other persons also confirmed that he took steroids.
It is strange that anabolic steroids are blamed in this situation. Are these products responsible for the crime? Don’t forget that Joshua Allen Kruzik has been drunk, when he has killed the child!
It is not clear whether the juries will accept the steroid excuse.