In a recent edi­to­r­i­al enti­tled The Myth of Deterrence,” the Dallas Morning News point­ed to the many rea­sons why the death penal­ty does not deter mur­ders: a major­i­ty of mur­ders can be clas­si­fied as irra­tional acts, and the per­pe­tra­tors are unlike­ly to have con­sid­ered the pos­si­bil­i­ty of a death sen­tences before and dur­ing the crime; those who com­mit pre­med­i­tat­ed mur­der are also unlike­ly to con­sid­er the pos­si­bil­i­ty of cap­i­tal pun­ish­ment because it is so unlike­ly to be car­ried out. No ratio­nal crim­i­nal should be deterred by the death penal­ty, since the pun­ish­ment is too dis­tant and too unlike­ly to mer­it much atten­tion,” the News writes, quot­ing econ­o­mist and Freakonomics” author Steven Levitt.

According to the News, the argu­ments that the death penal­ty deters mur­der do not hold up to scruti­ny. States in the South have a high­er homi­cide rate than all oth­er regions of the United States, and they also have high­er num­bers of death sen­tences and exe­cu­tions. The News asks, If cap­i­tal pun­ish­ment were an effec­tive deter­rent to homi­cide, should­n’t we expect the oppo­site result?” Recent stud­ies claim­ing the death penal­ty deters numer­ous mur­ders have also found to be fatal­ly flawed.”

The edi­to­r­i­al follows:

In the­o­ry, the death penal­ty saves lives by stay­ing the hand of would-be
killers. The idea is sim­ple cost-ben­e­fit analy­sis: If a man tempt­ed by
homi­cide knew that he would face death if caught, he would recon­sid­er.

But that’s not the real world. The South exe­cutes far more con­vict­ed
mur­der­ers than any oth­er region yet has a homi­cide rate far above the
nation­al aver­age. Texas’ mur­der rate is slight­ly above aver­age, despite the state’s
peer­less deploy­ment of the death penal­ty. If cap­i­tal pun­ish­ment were an
effec­tive deter­rent to homi­cide, should­n’t we expect the oppo­site
result? What’s going on here?

Human nature, most­ly. Murder is often a crime of pas­sion, which by
def­i­n­i­tion excludes the fac­ul­ties of rea­son. The jeal­ous hus­band who
walks in on his wife and anoth­er man is in no posi­tion to delib­er­ate
ratio­nal­ly on the con­se­quences of killing his rival. The con­ve­nience
store rob­ber who choos­es in a split-sec­ond to shoot the clerk has not
pon­dered the poten­tial out­comes of pulling the trig­ger.

People over­tak­en by rage, pan­ic or drunk­en­ness should be brought to
jus­tice, of course, but they are hard­ly paragons of pure rea­son, and
it’s unrea­son­able to assert that they con­sid­er the pos­si­bil­i­ty of a
death sen­tence when com­mit­ting their crimes.

Too dis­tant a threat

Even pre­med­i­tat­ed killers don’t expect to be exe­cut­ed. And for good
rea­son. Statistics show that a homi­ci­dal gang­ster is far more like­ly to die at
the hands of his fel­low thugs than the hands of the state. As econ­o­mist
and Freakonomics author Steven Levitt writes, No ratio­nal crim­i­nal
should be deterred by the death penal­ty, since the pun­ish­ment is too
dis­tant and too unlike­ly to mer­it much atten­tion.”

Well, then, just speed up the appeals process, some say. But the appeals
process has already been short­ened as much as pos­si­ble with­out being
reck­less. This at the same time that a steady stream of DNA exon­er­a­tions have
raised impor­tant ques­tions about inves­tiga­tive tac­tics once thought to
be fool­proof.

Is it worth the risk of killing inno­cent peo­ple on the unproven the­o­ry
that it would result in few­er inno­cents dying via homi­cide?

This year, this news­pa­per reversed its long­stand­ing sup­port of the death
penal­ty because the process is deeply flawed and irre­versible. Among the
moral, legal and prac­ti­cal rea­sons for our stance is the absence of hard
evi­dence that cap­i­tal pun­ish­ment pre­vents mur­der.

Some recent stud­ies pur­port to show that exe­cu­tions actu­al­ly deter
mur­ders. These stud­ies have been ana­lyzed by oth­ers and found to be fatal­ly
flawed — fraught with numer­ous tech­ni­cal and con­cep­tu­al errors,” as
Columbia Law pro­fes­sor and sta­tis­tics expert Jeffrey Fagan tes­ti­fied to
Congress. One Pepperdine study tout­ed last month on the Wall Street
Journal op-ed pages found that a nation­al decline in the mur­der rate
cor­re­lat­ed with exe­cu­tions. But that study links two broad sets of num­bers and leaps to a sim­ple con­clu­sion.

Inconclusive at best

The dev­il real­ly is in the lack of details. The nation­al mur­der rate has
been declin­ing for a decade and a half — in states with and with­out the
death penal­ty. But the drop has been faster in states that reject
cap­i­tal pun­ish­ment. At best, evi­dence for a deter­rent effect is
incon­clu­sive, and should­n’t offi­cials be able to prove that the tak­ing
of one life will undoubt­ed­ly save oth­ers? They sim­ply have not met that
bur­den of proof, and it’s dif­fi­cult to see how they could.

The only mur­ders the death penal­ty unar­guably deters are those that
might have been com­mit­ted by the exe­cut­ed. But we should­n’t pun­ish
inmates for what they might do. Besides, soci­ety has an effec­tive and
blood­less means of pro­tect­ing itself from those who have proved
them­selves will­ing to mur­der. It’s called life with­out ben­e­fit of
parole. In a pre­vi­ous edi­to­r­i­al, we called this death by prison.”

Granting the state the pow­er of life and death over its cit­i­zens
requires some­thing far more sol­id and cer­tain than mere guesswork.

The Dallas Morning News reversed its long-held sup­port for the death penal­ty ear­li­er this year because the process is deeply flawed and irre­versible. Among the moral, legal and prac­ti­cal rea­sons for our stance is the absence of hard evi­dence that cap­i­tal pun­ish­ment pre­vents mur­der.”
(“The Myth of Deterrence: Death penal­ty does not reduce homi­cide rate,” The Dallas Morning News, December 2, 2007). See also Deterrence and New Voices.

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