We had to put up a beloved pet for adoption at an animal shelter

We had to put our 7 year old Belgian Malinois for adoption because Levi attacked our new dog Keke and almost mauled her. He had a history of attacking other dogs. He attacked a German shepherd puppy about a year old several years ago named Brody. He attacked a four month old puppy named Delgado. He has gotten into dog fights at the dog park but I’m not sure if the other dogs started it or not. He was mostly a good dog except for these attacks. He also bit me and tore my cheek off when I hugged him, ( it was my fault for putting my arms around him and putting my face into the crook of his neck.) he growled quickly and bit me hard. He never showed me any aggression after that. He always wanted to play and be friends. Even the trainer said he didn’t mean to hurt me. For most part he was a beloved pet who made us laugh and was our best friend.he was protective and loyal to our family. Now instead of two dogs like we hoped Levi would accept Keke because she was female and not male , we only have one. I miss Levi so much. I remember him as a puppy before he became dog aggressive. And even at a year or two old wasn’t dog aggressive yet. My family cried and so did I. We hope he gets placed in a nice home where he is the only dog and can be a companion to someone who likes to be active. He is from a farm in Amish country. He never trained to be a military or police dog and. Has gastrointestinal disease that he needs to be on a special diet. For otherwise he would get massive diarrhea. He had never shown an ounce of aggression to any human child at least. Animal control took him away yesterday. It was a sad day. He never showed. Aggression to any other human. Although he had this strange habit of sniffing my dirty underwear. In the laundry basket and taking it out and ripped two or three pairs of my panties to shreds.