Horror as estranged husband shoots dead his wife at their daughter's Sweet 16 birthday party before turning the gun on himself

Mrs Suckla was shot multiple times in her neck and body; police later found the husband lying dead on a walkway in front of the Grapevine, Texas, home; a handgun was found nearby.

• Kelly and Kristi Suckla were separated and Kristi had been living with her parents for several weeks
• Argument broke out at their daughter's 16th birthday party Saturday
• Kelly shot dead his wife before turning the gun on himself in murder-suicide, police said