Byron Lee, 35, was found guilty by a San Diego jury of second-degree murder, plus a knife allegation, in the June 26, 2021, killing of 34-year-old Yacoub.
He was taken to a hospital, where he died. Testimony from Lee's trial indicated Abdallah was stabbed in the chest, with the fatal wound penetrating his heart.
The second of two suspects charged with planting a pipe bomb that detonated at a Kearny Mesa hotel earlier this year but caused no injuries was sentenced Wednesday to two years behind bars.