This particular week in April already had its fair share of tragedies before the Boston Marathon killings.
It is also the anniversary week of the Virginia Tech massacre, the Columbine High School shootings, the end of the Branch Davidian siege at Waco, and the Oklahoma City bombings.
The Virginia Tech massacre, which occured April 16, 2007, commemorated the six-year anniversary of the deadliest mass shooting in U.S. history.
The shooting on the university's campus in Blacksburg, Virginia claimed the lives of 32 people and 17 others were wounded. The shooter, Seung-Hui Cho, a Virginia Tech senior, used two guns in two separate attacks before committing suicide.
It was on April 19, 1993, that the siege of Waco ended amid TV images of fiery buildings which were occupied by the followers of David Koresh, a cult leader/messianic figure who had established his own church to carry out what he believed was a divinely commissioned errand.
There were allegations of child abuse and statutory rape at the chirch and it was then-U.S. Attorney General Janet Reno that ordered the final day to end the siege.
That siege began Feb. 28, 1993, when the followers exchanged gunfire with federal agents from the ATF and ended a whole six weeks later on April 19 with the deaths of 82 men, women and children and four FBI agents.
Two years later, on April 19, 1995, there was the Oklahoma City bombing of the Alfred P. Murrah Federal Building where 168 people, including children inside a daycare center there, died and became known as the deadliest domestic terrorist attack in the nation's history.
And that particular day was chosen for a reason by Army veteran Timothy McVeigh. He detonated a bomb in a truck right outside the building as retaliation for the way the government handled the Waco raid two years earlier.
And no one will forget the Columbine High School on April 20, 1999, the benchmark-in-the-making of school shootings.
That day, 15 died from gunfire -- including students Eric Harris and Dylan Klebold, who committed suicide - and 21 more were injured.Numerous explosive devices throughout the school.
Afterwards, the journals of Harris and Klebold showed that the duo intended to commit a crime more infamous than the Oklahoma City bombing.
This week should be one of sad memories and remembering those who died for whatever reason by the hands of those who, except South Korean Seung-Hui Cho, are also Americans, which is doubly sad.