The simple answer to your question is no, there's not really a consensus, but I think it's likely that the raw majority (to whatever degree) is probably against it. Personally, I'm against virtually every instance of humans using violence against each other, and I'm especially uncomfortable with the prospect of the government using legitimized force against its citizens in any way. Not only am I not ok with the death penalty, I also think the American prison system is in dire need of reform. Really, our legal system in general is in need of reform; we have the highest proportional prison population of any developed nation. We should not be ok with that.
Verbatim from the mouth of Jesus (retranslated from a retranslation of a copy of a copy):
"Do not judge, or you too will be judged. For in the same way you judge others, you too will be judged, and with the measure you use, it will be measured to you. How can you see your brother's head up his ass when your own vision is darkened by your head being even further up your ass? How can you say to your brother, 'Get your head out of your ass,' when all the time your head is up your own ass? You hypocrite! First take your head out of your own ass, and then you will see clearly who has his head up his ass and who doesn't." Matthew 7:1-5 (also Luke 6: 41-42)
Also, I has a website: www.RedbeardThePink.com
"Do not judge, or you too will be judged. For in the same way you judge others, you too will be judged, and with the measure you use, it will be measured to you. How can you see your brother's head up his ass when your own vision is darkened by your head being even further up your ass? How can you say to your brother, 'Get your head out of your ass,' when all the time your head is up your own ass? You hypocrite! First take your head out of your own ass, and then you will see clearly who has his head up his ass and who doesn't." Matthew 7:1-5 (also Luke 6: 41-42)
Also, I has a website: www.RedbeardThePink.com