This from a Finnish news source :
The Jokela gunman Pekka-Eric Auvinen is very likely to have used anti-depressant drugs, which have been linked with school massacres in the United States. A message written by “Sturmgeist89”, a pseudonym used by Auvinen, appeared on the Internet a short time ago stating that he took the mood-enhancers, although he hated them.
In a video that he placed on YouTube, Sturmgeist89 displays packages of Cipralex, Zoloft, Luvox, and Prozac pills. The video “SSRI-One Pill A Day Makes You Happy” criticises medicalisation. The drugs in question are Selective serotonin reuptake inhibitors (SSRIs). Eric Harris and Dylan Klebold, the perpetrators the massacre at Columbine High School in Colorado in the USA, had said that they took pills in the same class of drugs. There is disagreement among experts as to whether or not the drugs can provoke destructive aggression. In a message he put on an Internet chat room Pekka-Eric Auvinen suggests that he had started using anti-depressants during the past year.
“StormSpirit”, another pseudonym used by Auvinen, wrote on the Peliplaneetta.net website that he had suffered “from some degree of depression for about a year”.
Sturmgeist89 told a Danish former female acquaintance that he felt frustrated and aggressive because of the drugs. On the other hand, in his English-language message he said that he had stopped taking the pills, at least temporarily. At Thursday’s press conference police said that Auvinen’s autopsy had not been completed, and that it was not yet known if he was under the influence of any medicines. The police are checking with Auvinen’s parents and health care officials to see if he had been prescribed antidepressants. He also may have acquired them illegally or over the Internet. The National Agency for Medicines recommends against prescribing SSRIs for people under the age of 18, because of the self-destructive or hostile emotions that they have been known to provoke.
No mention of this at all in the UK press.