My new brother only has 1 arm, lol

"Mom, my brother is coming today, isn't he?" Dillion Mathews asked. He was 8 years old with brown scruffy hair. He wore a One Punch Guy shirt, since that was his favorite super hero, and carried a One Punch Guy plushy.
"Yes, honey. He should arrive within the hour." His mother said. She looked like an ordinary house mom, with brown hair and a turquoise eyes. She was wearing an apron. Dillion sat at the table, as his mother took the food to him.
"What kind of kid do you think he'll be?" Dillion asked.
"He's a handicap. That's all I know. But I'm sure you two will get along, Dillion." She said, dropping a plate and some orange juice in front of him. The doorbell rang. She smiled. "I'm sure that's him now. I'll go get it.You wait here." she said, walking to the door. She opened it, and stared at a women with two bags, and a blonde boy with one arm. She gasped, and looked at the women. The women smiled.
"This is Damien Beasley. He's 8 years old. Two months ago, him and his little brother-"
"DO NOT TELL!" Damien yelled, interrupting the women and startling Mrs. Mathews. "It's none of her damn business."
"Umm, alright. Dillion! Help your new brother with his bags." Mrs. Mathews called. Damien cringed, as Dillion ran up to them, but paused, noticing Damien was losing an arm. He looked at his mother, who glared back, and nudged to the bags. Dillion grabbed Damien's bags, and walked away. Mrs. Mathews lowered to Damien's level, and smiled. "Damien, why don't you follow your new brother to your new room." Damien frowned.
"My brother is dead," Damien said, walking past her. Mrs. Mathew's mouth dropped, and a gloomy expression arrived on her face. She looked at the lady, and stood up, walking outside.
"We need to talk," Mrs. Mathews said, closing the door.