A man killed his daughter in Sindh's Tando Allahyar district on Sunday suspecting her of having an affair and turned himself in to police.Umeed Mallah, the self-confessed culprit, killed his daughter, Sawera Mallah, 18, in Talibul Moula Colony."He turned himself in along with the pistol he had used to kill the girl," SHO Muhammad Khoso told The Express Tribune.Umeed told the police that his daughter had an affair with a man and that compelled him to kill her.The police have not registered an FIR so far. However, if no family member comes forward as a complainant, the they will lodge a case on behalf of the State after the postmortem report.In another case of honour killing on Saturday, Parveen Rajput, 25, along with her alleged paramour Ali Jamali, were shot dead by the woman's brother-in-law in Nawabshah.