According to the affidavit, Brennan "walkedaway quickly in a crouched or hunched overposition, as if he had been shot in the shoulder"and pulled off a fake beard as he headed towardMt. Auburn St.

Police later recovered a beige jacket on a rampoutside University Health Services, and shut downHolyoke Center for two hours as agentsunsuccessfully searched offices.

"Until we have him in custody, we won't be ableto match blood type and DNA and such," Ginieressaid. "We're very confident that Mr. Brennan has a[bullet] entry and exit wound somewhere on hisperson that will obviously undergo someinvestigative scrutiny once we locate him."

Leahy and Smith originally faced six statecriminal charges each, including assault withintent to murder and armed robbery while masked.

But the federal government assumed jurisdictionof the case, and both now face charges ofobstructing interstate commerce through robbery,and using firearms during the robbery. Both are infederal custody, and their trial in U.S. DistrictCourt is set to start early next month.

The hunt for Brennan is being conducted by theBank Robbery Task Force, which includes agentsfrom the FBI, the Massachusetts State Police andthe Boston and Cambridge police departments.

The agent said authorities have not found tiesbetween the Harvard Square robbery attempt andother heists, such as the Faneuil Hall theft andan earlier one in New Hampshire. "No links havebeen established to any previous armored-carheist," Ginieres said