Born in April 1990, Prince Al-Waleed — who was nicknamed Dede by his family — was injured in a car accident in 2005 while studying at a military college in London, per Gulf News and the Mirror. He was 15 years old at the time.
The prince sustained several severe brain injuries and internal bleeding, and eventually fell into a coma. He was later transported to King Abdulaziz Medical City in the Saudi city of Riyadh, where he remained in a coma until his death.