Little did the family members of Sameer Ahmed, who married off his two children in January, know that tragedy will strike within a month. Sameer was among the two people killed in an under-construction building collapse in Loni near here on Sunday. And, what was more tragic is that his other son, Sohail (20), saw his father get crushed under a collapsed scaffolding and die. Sohail, who was standing on the scaffolding before it collapsed, was among the 11 injured in the incident in the Roop Nagar industrial area in Loni in Ghaziabad, neighbouring Delhi, police said.