Your straw man here depends on these statements that are inaccurate and oversimplified. The Right to Keep and Bear Arms is a Liberty Right. The Right to Life is a Claim Right.

The scope of the Constitution, of which the Bill of Rights is a part, is about the six basic objectives written in the Preamble:

-form a more perfect Union
-establish Justice
-insure domestic Tranquility
-provide for the common defence
-promote the general Welfare
-secure the Blessings of Liberty

To that end Amendments I, II, IX and X list specific liberties and protect others not specifically detailed. The other Amendments list Claim Rights which depend on the respect of both the government and the whole of the People to be enjoyed.

Saying that the right to a gun includes implicitly the right to murder is your straw man.

You do absolutely have the right to life and anyone who murders you is engaging in a crime. However, just as prior restraint (censorship) is not allowed by the First Amendment, wholesale confiscation and prohibition is not allowed by the Second.

The fact that there is an item or some bit of knowledge is a means to commit a crime does not authorize its confiscation by the government. I have a checkbook. If I write a check for $5,000,000 and try to cash it, that's a crime. This is not a justification for the government to take my checkbook.