On Monday at 8:04 p.m. -- hours after the bombings -- he tweeted a lyric from rapper Jay-Z: "Ain't no love in the heart of the city, stay safe people."
On Tuesday shortly after midnight he tweeted, "There are people that know the truth but stay silent & there are people that speak the truth but we don't hear them cuz they're the minority."
[Updated 11:55 a.m. ET]
The uncle of the Tsarnaev brothers told reporters outside his home in Montgomery County, Maryland, this morning that his family is "ashamed" to be related to the suspects.
Ruslan Tsarni said the 19-year-old suspect still on the run "has put a shame on our family, a shame on the entire ethnicity." Tsarni urged his nephew to turn himself in.
He said people capable of committing such a crime are "losers."
[Updated 11:20 a.m. ET]
U.S. Secretary of State John Kerry praised law enforcement in their hunt for the Boston Marathon attack suspects.
"I think it is fair to say this entire week we have been in pretty direct confrontation with evil," he said. "In the past few days, we have seen the best and we have seen the worst of human behavior, and it is the best that all of us really want to focus on."
[Updated 10:55 a.m. ET]
Taxi service in Boston has been restored, police said. The service had been suspended earlier today because of the manhunt in the Boston bombings case.
[Updated 10:52 a.m. ET]
More details on the discovery of the vehicle that police had been looking for: Boston police say that it was found unoccupied.
[Updated 10:50 a.m. ET]
Another flurry of police activity is happening in Watertown, the Massachusetts community where police say one Boston Marathon bombing suspect was killed and another was being sought.
Police are asking reporters to move back -- and stay down -- as a number of other officers are drawing guns in a certain area, CNN's Deborah Feyerick reports from Watertown.
[Updated 10:41 a.m. ET]
Connecticut State Police say that a vehicle that might be connected to a suspect in the Boston Marathon attack has been recovered in the Boston area. The vehicle is a gray Honda CR-V with Massachusetts plate 316 ES9.
Connecticut police earlier had issued a lookout notice for the vehicle.
This is what Boston police had to say about the vehicle earlier, on Twitter: "Police seeking MA Plate: 316-ES9, '99 Honda CRV, Color -- Gray. Possible suspect car. Do not approach."
[Updated 10:29 a.m. ET]
A high school friend of Dzhokar Tsarnaev, the suspect who Boston police say still is at large, is recalling what he remembers about him.
Eric Mercado told CNN that he went to Cambridge Rindge & Latin, a public high school, with Dzhokar Tsarnaev, 19. Both graduated, he said.
"We hung out; we partied; we were good high school friends," Mercado said. "We're all, like, in shock. We don't really understand. There were no telltale signs of any kind of malicious behavior from Dzhokar. It's all coming as a shock, really."
[Updated 10:24 a.m. ET]