Can we draw the following hypothesis from the context (see options)?

Context:

However, witnesses said some of the black-clad gunmen who attacked a police station and government buildings in Baquba, 60 km (40 miles) northwest of Baghdad, proclaimed loyalty to Zarqawi and wore yellow headbands linking them to his group.

Hypothesis: people said the black clad gunman who attacked and killed police were following ZArqawi from baghdad
Choose from:
1). Yes.
2). It's impossible to say.
3). No.
2).