" No person shall be held to answer for a capital, or otherwise infamous crime, unless on a presentment or indictment of a Grand Jury, except in cases arising in the land or naval forces, or in the Militia, when in actual service in time of War or public danger; nor shall any person be subject for the same offence to be twice put in jeopardy of life or limb; nor shall be compelled in any criminal case to be a witness against himself, nor be deprived of life, liberty, or property, without due process of law; nor shall private property be taken for public use, without just compensation."
It says nothing about voluntary suicide, does it?
In other words, no person can be deprived of life without being duly found guilty of a crime.
I hope you realize the danger of your argument, that the 5th Amendment does NOT protect innocent life. Stop for a moment and reflect on line of reasoning.
".... due process of law ...." is frequently dispensed with by Liberals these days.