This is not the entire article but excerpts I think matter to make the point this fellow probably had been given psycho active prescriptions as a child.
It would be difficult to believe he had not been given such as a child, probably, his Dad would be able to answer this question. Pharmacies to not retain Rx records, which facilitates covering up.
Taken from the CBS NEWS article indicated above, dtd May 27, 2014, written about Santa Barbara mass murderer (using a multitude of weapons, and not just guns), as follows:
In July 2012, 24-year-old Holmes opened fire at a midnight screening of a Batman film, killing a dozen moviegoers. Like Rodger, he too had seen mental health professionals before his rampage. Five months later, 20-year-old Lanza shot 20 first-graders and six educators at Sandy Hook Elementary School in Connecticut.
Dr. E. Fuller Torrey, a leading expert on severe mental illness, told “60 Minutes” in 2013 that many mass killings turn out to be committed by mentally ill people who were not receiving treatment. “About half of these mass killings are being done by people with severe mental illness, mostly schizophrenia. And if they were being treated, they would’ve been preventable,” he said.
Experts who study mass murderers say the vast majority of lonely and angry people don’t commit violence, which makes it difficult to know who will snap.
Information gleaned from his manifesto indicates his family made numerous attempts to get him treatment for symptoms of psychiatric illness, but Rodger was resistant. He said he was prescribed an antispychotic drug called Risperidone but refused to take it.
In his writings, Rodger said he had seen several therapists throughout his life, but it’s unclear what he had been diagnosed with or treated for.