I don't believe you can say that someone with children does not have the "right" to committ suicide...when someone does take their own life, they are generally not seeing any other way...and may well know their children will be cared for. In any case, I am not sure that a suicidal parent is of much use to a child...I know some people who lost a parent to suicide and they are more compassionate people than most, because they understand that sometimes people just can't bear to live, for whatever reason.
If anything, people with children should not have the "right" to committ murder, such as the suspect in the little girl's case , Breeann...look what that guy's children will endure. I think it would be far easier for them if he had simply killed himself and left the little girl to live her life...
jmo