Army Spc. Ryan Hill and daughter, Emma, 3, light a candle Saturday near the main gate of Fort Hood in Texas.

Eliza Browning
AC360° Associate Producer

A memorial service for the 13 victims of last week’s shooting at Fort Hood will be held this afternoon at 2 p.m. ET. President Obama and the First Lady will attend the service and the President is expected to meet with the families of those who were killed. The service will be live on CNN starting at 1:30 p.m. ET and it will also be streamed on CNN.com/live.

Last night we learned that Maj. Nidal Malik Hasan, the army psychiatrist accused of perpetrating the killings at Fort Hood apparently told senior Army physicians more than a year ago that Muslim soldiers should be allowed to be released as conscientious objectors instead of fighting in wars against other Muslims. He also was known for speaking out about Islam, suicide bombers and threats the military could encounter from Muslims conflicted about fighting in Iraq and Afghanistan. Were these red flags? Could these have been missed opportunities for officials to intervene? And although investigators believe Hasan acted alone, his communications were flagged by U.S. intelligence agency in late 2008, according to the FBI. Drew Griffin will have the latest developments for us tonight.

We're also following the DC sniper story today. John Allen Muhammad’s shooting spree left at least 10 dead during his sniper-style attack in 2002. He is scheduled to be executed tonight at 9 p.m. ET by lethal injection at a state prison near Jarratt, Virginia. During two lengthy trials – including one in which his accomplice, Lee Boyd Malvo, testified – Muhammad continued to profess his innocence. Yesterday, the Supreme Court refused to block his execution. His second ex-wife, Mildred Muhammad, told Larry King she believes she was his ultimate target.

Tonight we are covering the developments related to the execution and we will bring you part two of our special, looking back at the timeline of terror that led to the arrest and eventual conviction of the so-called “DC sniper.” We’ll hear firsthand accounts from reporters and witnesses who were there seven years ago while the horrifying events unfolded more than seven years ago.

Former President Bill Clinton is having lunch with Senate Democrats today to address the caucus about health care. Do you think Clinton’s presence will make a difference? Many point to the failure of his administration to pass health care reform was a precursor to the Democrats’ suffering on Election Day. Do you think there’s any truth to that? There are major differences between the Clinton Administration’s plan and the proposal currently working its way through the legislative process. Does it matter?

We’ll also take a look at the role abortion is playing in health care reform. An amendment that tightened restrictions against abortion insurance coverage was a late addition to the House bill that narrowly passed on Saturday night by a 220-215 vote. Now Democratic senators are lining up on opposite sides of the issue, adding a new hurdle to President Obama’s goal of getting a final bill passed this year.

The House measure says that federal subsidies cannot be used to buy health policies that cover elective abortion. But abortion rights supporters say that would affect a broad set of consumers, because they believe insurers would likely abandon abortion coverage in all policies. What do you think? Can the abortion issue be separated from the overhaul of our health care system or is it a key topic in the debate?

What else are you following today? Let us know and see you at 10 p.m. ET.