A North County mail carrier's wife said her husband was killed when he was attacked by a Rottweiler.Teri Lin and their three children are frustrated because they say they are not getting any answers from Oceanside police or postal officials."I tried to talk to him but he was very unresponsive, he was going in and out of consciousness. It just got worse and worse each day. The doctor truly believes someone assaulted him that he just didn't fall because the injuries were so serious," said Lin.Teri Lin said her husband Eddie Lin was working overtime May 25th, delivering mail on the 500 block of Stanley Street in Oceanside. It was someone else's route, which may explain why Lin never saw the vicious Rottweiler that neighbors say lunged at him, knocking him to the ground."When they found him I noticed his uniform from the back was ripped," said Teri Lin.By June 3rd, the 33-year-old father of three was brain dead and died from blunt force head trauma.Teri Lin told 10News she learned the same dog attacked another mail carrier four years ago."My kids cry. Last night my son was crying saying he has no dad and it just breaks my heart," said Teri Lin.Now, this widow is fighting another battle, with the post office and Oceanside police. "I'm just so frustrated with them." Teri Lin said she can't get any answers from either, "every time I go down there they keep saying the case is not assigned yet. I don't even know if they're doing an investigation and it seems like they're blowing me off."10News called Oceanside police several times but our calls have not been returned.Investigators did not even tell Teri Lin the Rottweiler had been euthanized, she said she found out from someone who lives next to the dog's owner.A postal investigator released this statement, "postal services and postal inspection, places a high priority on the safety of its workers. That's why we're investigating."