A judge signed on Sunday the death warrants for five killers of Bangladesh"s independence leader Sheikh Mujibur Rahman, formally setting the clock for their executions within four weeks, Reuters reported. Court officials said the signed warrants would be forwarded to the prison authorities immediately and the executions would take place within the next 21 to 28 days. However, the executions may be delayed if the five convicted men seek another review by the Supreme Court or request presidential clemency.