The man, who denies crime, was charged with public destruction and violation of the law on flammable and explosive goods.

He is now sentenced to prison.

According to the district court, the penalty is imprisonment for four years, but because he was 18 years old when the crime was committed, the sentence will be two years' imprisonment.

Javascript is disabled

Javascript must be turned on to play video

Read more about browser support

The browser is not supported

SVT does not support playback in your browser.

We therefore recommend that you switch to another browser.

Read more about browser support

Here it explodes at the villa in Upplands-Bro Photo: Crime scene Sthlm / Marco Blomberg / STHLMNEWS

The man was also charged earlier this week with a serious drug crime and a serious gun crime in a large investigation in Norrköping.