Is the possibility that he spent time in Michigan going to be investigated? Given the official indifference to the presence of the jihad ideology there, probably not. "Suicide bomber blew up Bulgaria airport bus," by Angel Krasimirov for Reuters, July 19:
BURGAS, Bulgaria (Reuters) - A suicide bomber carried out the attack that killed eight people in a bus transporting Israeli tourists in Bulgaria, the country's interior minister said on Thursday, and Israel accused Iranian-backed Hezbollah militants of responsibility.
Video surveillance in front of the airport and the investigation showed the bomber could not be distinguished among arriving Israeli tourists, Interior Minister Tsvetan Tsvetanov said at the airport of Burgas, on Bulgaria's Black Sea coast.
"We have established there was a person who was a suicide bomber in this attack (on Wednesday). This person had a fake driving license from the United States, from the state of Michigan," Tsvetanov told reporters.
"He looked like anyone else - a normal person with Bermuda shorts and a backpack," he said.
Special forces had managed to obtain DNA samples from the fingers of the bomber and were now checking databases in an attempt to identify him, Tsvetanov said. Bulgarian security services had received no indications of a pending attack.
Tsvetanov said eight people were killed in the attack including the Bulgarian driver of the bus and the bomber. The Israeli foreign ministry said it could confirm that five Israelis were killed.
The tourists had arrived in Bulgaria on a charter flight from Israel and were on the bus in the airport car park when the blast tore through the double-decker. Body parts were strewn across the ground, mangled metal hung from the bus's ripped roof and black smoke billowed over the airport....