Luke Acuna, 9, was riding his skateboard home from Garfield Elementary School on November 17 when he turned to look at his friends and collided with a city trash truck at Kansas Street and Meade Avenue in North Park, according to police reports.Police said Luke, who remains at Rady Children's Hospital in critical condition, was wearing a helmet.Anthony Acuna, Luke's father, spoke to 10News on Wednesday about his son's condition and said, "He was a child with very high sprits, but he will have many surgeries and a long road ahead. Luke loved everything sports, but now he is on a different journey in life. He always said, 'Play [like] there's no tomorrow, dad.'"With his wife and two sons -- 22-year-old Anthony and 11-year-old Matthew -- by his side, Acuna told 10News Luke's leg had to be amputated and the fourth-grader suffered major internal injuries and several broken bones. He thanked the caring staff at Rady Children's Hospital and was grateful for the love and support from family, friends and the community.Luke's friends at Garfield Elementary put together a video montage for their classmate, and the school is also trying to organize a fundraiser for the family."It's a painful lesson. This is the unthinkable. Luke is such a good-hearted kid. He excelled at math and always helped other kids. We bought an orchid to place on his desk as a symbol of hope for him," said Hans Mosler, Luke's teacher.An account has been set up at Wells Fargo in Luke Acuna's name. If you wish to help, please reference account number 1994541090.