More than four hours into one of the most prestigious marathons tragedy struck as two bombs placed about 100 yards apart detonated within 12 seconds of each other.
More than 170 were injured and three were killed.
The Texas Department of Public Safety (DPS) has added Charles Edward Robertson-Davis, 21, to the Texas 10 Most Wanted Fugitive list, and a $10,000 cash reward is now offered for information leading to his capture.
A wanted felon is now under arrest after leading local authorities on a three-hour standoff.
While patrolling the city, officers from Hewitt Police saw Richard Mann, 40, outside a house in the 100 block of Coventry Drive.