A woman grieves as firefighters and police officers salute as they watch the procession during a memorial service for four Houston firefighters on June 5.

Dozens of fire trucks and emergency services vehicles from New Orleans, Dallas and elsewhere formed a long procession on flag-lined streets leading to Reliant Stadium.

Four-year-old Sophia Phillips is presented an American flag by Brigadier Gen. James Pasquarette during a burial service for her father, Staff Sergeant Francis G. Phillips, at Arlington National Cemetery on May 20, in Arlington Virginia.

Sophia Phillips receives a flag from Brig. General James Parquarette as her mother and widow Christine Phillips watches during burial service for U.S. Army Staff Sergeant Francis G. Phillips IV at Arlington National Cemetery.

An Orthodox priest blesses coffins with the remains of Russian soldiers who perished in the fights at Sinyavino's Hills during the blockade of Leningrad in WWII, during a reburial ceremony outside St. Petersburg, Russia, on May 7, 2013. The remains of 417 Russian soldiers, discovered by a memorial research group were reburied as Russia celebrated the 68th anniversary of the victory over Nazi-Germany in WWII.

Members of a memorial research group pay tribute next to the coffins with the remains of Russian soldiers who perished in the fights at Sinyavino's Hills during the blockade of Leningrad in WWII, during a reburial ceremony outside St. Petersburg, Russia, on May 7, 2013.

Firefighters stand at attention as mourners applaud a West, Texas fire engine during a processional before the start of a memorial service honoring those killed in the West, Texas fertilizer plant explosion at the Ferrell Center on the Baylor University campus in Waco, Texas on Thursday.

Members of the Patriot Guard line the road for a procession in Waco prior to a memorial service for first responders who died in last week's fertilizer plant explosion in West, Texas.

An honor guard stand in front of caskets prior to a memorial service in Waco, Texas for first responders who died in last week's fertilizer plant explosion in the small town of West.

President Barack Obama and first lady Michelle Obama bow their heads behind a photo of volunteer firefighter Capt. Cyrus Adam Reed, who was killed, as they attend the memorial for victims of the fertilizer plant explosion in West, Texas at Baylor University in Waco.

The damage from the fertilizer plant explosion is seen from helicopters in accompanying President Barack Obama in West, Texas, en route to Baylor University, where the president was to speak at a memorial service.

A coffin containing the remains of a British soldier is carried on April 23 in the Honorable Artillery Company (HAC) Cemetery at Ecoust-Saint- Mein. Four British soldiers were laid to rest with full military honors in northern France on April 23, nearly a century after they were killed in action in World War I. Their bodies were discovered in 2009 when a local farmer was clearing one of his fields.

The coffin containing the remains of a British soldier is prepared for burial on April 23 in the HAC Cemetery at Ecoust-Saint- Mein.

Relatives of British World War I soldier Lieutenant John Harold Pritchard behind the soldier's headstone after a ceremony at the HAC cemetery in Ecoust-St-Mein, France, on April 23.

Farmer Didier Guerle shows a rusted and deteriorated rifle and pickaxe which he found in a field in 2009 near the site where he also located the bodies of two British World War I soldiers in Bullecourt, France, on April 22.

Priests attend the funeral ceremony of shooting victims in the village of Velika Ivanca, about 25 miles southwest of Belgrade on April 12, 2013. A Serbian war veteran who killed 13 relatives and neighbors in a dawn rampage in a Serbian village this week, before turning the gun on himself, died in hospital on Thursday. Serbs were stunned by the massacre on Tuesday in a sleepy rural region southwest of the capital. Six men, six women and a 2-year child died, the gunman's mother and son among them.

Women mourn during the funeral ceremony of shooting victims in the village of Velika Ivanca, on April 12, 2013.

Mourners carry crosses with pictures of some of the victims of the shooting rampage in the village of Velika Ivanca on April 12, 2013. Church bells rang out in the tiny Serbian village, as hundreds of tearful mourners buried 13 people gunned down in Serbia's worst massacre in two decades.

Orthodox priests and mourners hold candles during the funeral of victims of the shooting rampage in the village of Velika Ivanca on April 12, 2013.

A teddy bear is placed on the coffin of a shooting victim during the funeral ceremony in the village of Velika Ivanca, on April 12, 2013.

A coffin is interred as bystanders react during a mass funeral in the village of Velika Ivanca, Serbia on April 12, 2013.

Mourners react during the funeral service for Philadelphia firefighter Capt. Michael Goodwin at St. Michael's Lutheran Church on Thursday, April 11, 2013, in Philadelphia. Goodwin died Saturday in a roof collapse while battling a fire in a three-story building in the city's Queen Village section. He was 53.

Firefighters salute the flag draped casket containing the remains of Philadelphia firefighter Capt. Michael Goodwin.

Firefighters transfer the flag draped casket containing the remains of Philadelphia firefighter Capt. Michael Goodwin at St. Michael's Lutheran Church.

Mourners greet the hearse carrying the coffin of Sara Montiel, pictured, during a homage in downtown Madrid, on April 9 2013. Montiel, a famed, sultry-voiced Spanish actress who became the first to also achieve Hollywood stardom, died Monday. She was 85.

Italian actor Giancarlo Viola, former partner of Spanish actress and singer Sara Montiel, embraces her coffin during her funeral at Sacramental de San Justo cemetery in Madrid on April 9, 2013.

The family of Kaufman County District Attorney Mike McLelland and his wife, Cynthia, comfort each other during their funeral services at the First Baptist Church of Wortham on April 5, in Wortham, Texas.

Pallbearers carry the remains of Kaufman County District Attorney Mike McLelland and his wife, Cynthia, out of the First Baptist Church of Wortham after their funeral services on April 5, in Wortham, Texas.

Texas Gov. Rick Perry looks on as a flag is folded to present to the family of Kaufman County District Attorney Mike McLelland and his wife, Cynthia after a memorial services in Mesquite, Texas on April 4.

Buddy Dumeyera, the Louisville deputy coroner who runs the indigent burial program, places a flag on 48-year-old Francisco Carmona's casket as students from the St. Joseph of Arimathea Society at Trinity High School prepare to perform their duties on Feb. 6, at Meadow View Cemetery in Louisville, Ky. The students are, from left, Paul Adams, 18, senior, Jeremy Gaines, 16, junior, Nolan Riley, 14, freshman, Greg Atchison, 17, senior, Sean Dageforde, 17, Jake Eddy, 18, senior, school principal Dan Zoeller and social studies teacher Chad Waggoner.

Students read the opening prayer from a program for the indigent burial of 48-year-old Francisco Carmona, who died in January with no family or friends, yet had a service on Feb. 6, at Meadow View Cemetery in Louisville, Ky. Carmona's funeral was the 91st service for the poor in Louisville since Nov. 1.

Workers prepare to bury Francisco Carmona on Feb. 6, as graves await the indigent at Meadow View Cemetery, Louisville's current Potter's Field.

Soldiers help mourners carry the coffin of slain opposition leader Chokri Belaid during his funeral procession towards the nearby cemetery of El-Jellaz, where he is to be buried, in the Jebel Jelloud district of Tunis, on Feb. 8. Tens of thousands of mourners chanted anti-Islamist slogans on Friday at the Tunis funeral of secular opposition leader Belaid, whose assassination has plunged Tunisia deeper into political crisis.

A couple mourns next to a Tunisian flag during the funeral procession for the late secular opposition leader Chokri Belaid in the Jebel Jelloud district in Tunis, on Feb. 8.

Thousands of Tunisians are gathered at el Jallez cemetery to attend the funerals of slain opposition leader Chokri Belaid, near Tunis, on Feb. 8. The Feb. 6 assassination of prominent government critic Chokri Belaid plunged the country into one of its deepest political crises since the overthrow of the dictatorship in 2011. The coffin is carried by pallbearers at center of picture.

Tunisians cover their faces as they stand at Jellaz cemetery amid teargas fired by police during the funeral of slain opposition politician Chokri Belaid, in Tunis, Tunisia, on Feb 8. Media reports state that Tunisian police fired tear gas outside the cemetery in the capital Tunis where thousands of people had gathered for the funeral of opposition leader Chokri Belaid. Belaid was shot dead by an unknown attacker outside his home on Feb. 6.

A protester flees from teargas fired by riot police during clashes with riot police near the cemetery where slain Tunisian opposition leader Chokri Belaid is buried on Feb. 8.

Protestors burn cars next to the cemetery where thousands of Tunisians are gathered to attend the funerals of slain opposition leader Chokri Belaid, near Tunis, on Feb. 8.

Thousands of Tunisians attend the funeral of slain opposition leader Chokri Belaid at el Jallez cemetery near Tunis, on Feb. 8. The Feb. 6 assassination of prominent government critic Chokri Belaid plunged the country into one of its deepest political crises since the overthrow of the dictatorship in 2011.

A tunisian woman wrapped in her national flag makes her way through tombs while attending the funeral of slain opposition leader Chokri Belaid at el Jallez cemetery near Tunis, on Feb. 8.