Stockholm, Sweden (CNN) -- The bomber who killed himself in the second of two blasts in Sweden on Saturday was probably on his way to a more crowded location, but his bomb went off prematurely, Swedish authorities said Monday.
He sent a warning to a Swedish news agency from his phone shortly before the blasts, said chief prosecutor Thomas Lindstrand, in the first official confirmation of a link between the blast and the warning.
The warning came from a man called Taimour Abdulwahab, the news agency that got the e-mail told CNN Monday.
Lindstrand said authorities were almost certain that he was the bomber, but that authorities have not yet carried out DNA testing or spoken to his family.
No one else was killed in one of the explosions Saturday. The Swedish Security Service said the incidents appeared to be the work of "a single perpetrator". CNN
