For 700 consecutive Sundays, abuse survivors and their advocates have stood vigil outside Boston's cathedral.
A jury found Dzhokhar Tsarnaev guilty on all 30 counts related to the April 15, 2013, bomb attacks and four-day manhunt.
Sr. Helen Prejean said Dzhokhar Tsarnaev is "genuinely sorry for what he did" and told her how he felt about the suffering he caused to the bombing's victims.
The continued pursuit of a death sentence for convicted bomber Dzhokhar Tsarnaev "could bring years of appeals and prolong reliving the most painful day of our lives."
As the trial of Boston Marathon bombing defendant Dzhokhar Tsarnaev went to the jury Monday, the Catholic bishops of Massachusetts released a statement reiterating the church's teaching on the death penalty.
If convicted, Tsarnaev could be sentenced to death or to life without the possibility of parole.
The Catholic church opposes the death penalty except "if this is the only possible way of effectively defending human lives against the unjust aggressor," but such cases "are very rare, if not practically nonexistent."
As the quest for a jury in the Boston Marathon bombing trial approaches its fourth week, some of the area's 2 million Roman Catholics are growing frustrated with criteria that effectively disqualify followers of church teachings.
In a one-on-one conversation following a public speaking engagement, Boston Cardinal Sean O'Malley said that the firing of church workers because of LGBT issues is a situation that "needs to be rectified."
Earlier in the evening, the cardinal spoke of the need to include and minister to the lesbian, gay, bisexual and transgender community in light of Pope Francis' new vision for the church.
An episcopal vicar in the archdiocese of Boston began a voluntary administrative leave Monday after he pleaded not guilty to paying for sex with an alleged female prostitute.
Essay: For a family separated when the bombs went off near the finish line, nothing was worse than not knowing.
The Boston marathon bombing "calls us to focus on the task of building a civilization that is based on love, justice, truth and service," said Cardinal Sean O'Malley.