Khalil was born in 1949 to Adib and Evelynn Aoun Moujaes; He had a brother, Khaled, and a sister, Amal. He attended two of the most prestigious schools in Beirut, Collège Protestant Français and International College. He graduated as a lawyer from Saint Joseph University in 1969. He also volunteered with the Lebanese Red Cross.
Khalil was a good son, a great support to his family, and a great friend. He was in love with life, elegant, handsome, and always in tune with modern fashion and decor. He played the piano from a young age, and was a talented photographer, in addition to being an ambitious lawyer who always worked hard to promote justice, and advocate for the oppressed.
Khalil held multiple positions during his professional career; he was an appeals attorney, and a consultant with the Lebanese Ambassador to France in 1975. He represented high profile cases, and was a renowned lawyer at the national level. Khalil was most famous for his professional ethics, and his impulsiveness to help others. He was remarkably modest and human.
Khalil spent his life chasing the truth, fighting for justice, yet, his country was unfair to him. The deep-rooted corruption at the Port of Beirut ended his life, and that of hundreds of victims in nearby areas.
On August 4, 2020, Khalil was a patient at Saint George Hospital. He had no idea what was happening in warehouse number 12 at the port. A huge explosion wreaked havoc all over Beirut, and greatly damaged the hospital he was staying in. Khalil was hit by shards of shattered glass caused by the blast shock wave that slammed across the city. It was impossible for the hospital to attend to its patients, and he was evacuated to the Bouar Governmental Hospital where he passed away. According to the medical report, he died of extreme physical injuries.
Khalil's family, his loved ones, and his colleagues attended his funeral on August 6, 2020, in his birth town. He was buried in the family cemetery.
Khalil left this world, but his words still resonate in the hearts of those who knew him: "stop working before you get tired, and keep working before you get to rest."