Veteran comedian Bill Cosby is mourning the death of his on-screen son, Malcolm-Jamal Warner, aka Theo, of ‘The Cosby Show’.To Read Lifestyle Stories in Urdu – Click HereActor Bill Cosby, who played Cliff Huxtable across the eight seasons of NBC’s sitcom ‘The Cosby Show’, starring late actor Malcolm-Jamal Warner as his son Theodore ‘Theo’ Huxtable, expressed his grief over the latter’s shocking demise.As informed by his rep, Andrew Wyatt, to a foreign publication, Cosby is as devastated by the news of Warner’s passing as he was by the murder of his own son, Ennis, in 1997.According to the rep, Cosby also believes that Warner has created a lasting impact through his life and work that will continue to change the world, just as he did as part of the Huxtable family.For the unversed, Grammy-winner and Emmy-nominee Malcolm-Jamal Warner, 54, died of accidental drowning earlier this week, during a family vacation in Costa Rica.While his rep remained unavailable for comment, reports from authorities suggest that he was caught in a high current while swimming. Bystanders pulled him from the ocean, but he was declared lifeless upon reaching shore.The official cause of Warner’s death was confirmed as asphyxia by submersion due to drowning.Also Read: Bill Cosby sued for sexual assault by nine women in Nevada