"Edgar" wrote:

Leaving aside the arguments for and against the death penalty, how
can it possibly be more expensive to execute somebody than to keep
him/her in prison for life?

Pure math.

Assume it costs $1,000/week to keep someone in prison.

That is $52,000/year.

To simplify the math, call it $60,000/year.

If you keep a person in jail 60 years the cost is:

(60years)*($60,000/year) = $3,600,000 lifetime.

The legal costs for a capital case including appeals far exceeds
$3,600,000.

Also the jail costs continue to accrue thus increasing costs while the
legal process continues.

The only people who make out are the lawyers.

Lew