more now from abc s reena ninan. reporter: could the poison ricin-laced ricin-laceded mail sent to president obama and a u.s. senator been an act of revenge? fbi in full hazmat gear raided the home of 44-year-old everett dutschke. i ve never seen anything so blown out of proportion. reporter: dutchky says he wants to clear his name and consented to the search. he once ran for the mississippi house of representatives. one letter went to mississippi senator roger whittaker, seen here in this photo on my space. will they find anything suspicious? everybody has something suspicious in their house, but, no, there s nothing related to these letters. reporter: on tuesday, after spending a week in jail and after multiple home searches turned up empty, charges were dropped against this man, paul kevin curtis. curtis lawyers suggest he might have been set up. instead of wanting to defend
carefully analyzed. we re told that it was a pipe bomb packed with it has material in it that can act as shrapnel. it was wrapped in t-shirts and stuffed in a squisz army brand backpack. the police have promising leads but no suspects yet. this is one of the t-shirts, a relay race. this is the backpack, swiss army brand black backpack. and the other says treasure island 2009. they re hoping if people see these t-shirts and think about the backpacks that they will phone in some tips and they have gotten tips, according to officials out there. they re also asking for anybody who was at the corner where this device was placeded in spokane on the morning when the bomb was put there, if they were there