Drunk US marine murdered 18-month old child

Audrey Allen, an 18-month old girl, was murdered by Joshua Allen Kruzik.
The little girl 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 place, he was at a local bar where he drank much alcohol. He had to care about the little child, when she cried. But Joshua Allen Kruzik beat her too cruelly. As a result, the little girl got numerous severe head injuries. The little girl 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 stated that the killer took anabolic steroids. Before the incident he attempted to discontinue administering these preparations but he was not capable to do it. The defense attorney said that anabolic steroids caused “roid rage” in Joshua Allen Kruzik. He couldn’t not control his behavior and beat the little child. According to the defense attorney, his client was unconscious. However he claimed that his client was ready to assume the entire responsibility, he added that he was not guilty.
The victim’s parents also said that the murderer administered anabolic steroids. The mother of the baby affirmed that she had syringes at her home. So, she injected Kruzik with steroids, when he came. Certain other individuals also confirmed that he administered steroids.
It is strange that anabolic steroids are demonized in this case. Are these products responsible for the murder? Consider that Kruzen has been drunk, when he has killed the baby!
It is unclear whether the juries will accept the steroid excuse.