Social media scoured for clues to Boston Marathon bombing suspects

Twitter and YouTube accounts that reportedly belong to the suspected Boston Marathon bombers are being used to piece together a profile of the two Tsarnaev brothers.

Both the media and the public are combing through posts on the two social media sites to gain insights into the personalities of the two suspected bombers and find out what may have triggered them to launch a deadly attack at the Boston Marathon earlier this week that killed three people and seriously wounded scores of others.

A Twitter account suspected of belonging to 19-year-old Dzhokhar Tsarnaev, which multiple outlets report is @J_tsar, shows that he posted tweets just hours after the bombings ripped through the finish line area of the race and has continued to tweet throughout the week.

"Ain't no love in the heart of the city, stay safe people," the younger Tsarnaev brother allegedly tweeted on Monday in the hours after the race.

A tweet posted from the account later on Monday reads: "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."

He also tweeted rap lyrics from an Eminem song.

The account has been silent since Wednesday, when the last tweet was posted. A manhunt is currently underway for Dzhokhar Tsarnaev.

Spokemen for Twitter did not respond to requests for comment on whether the account belongs to the suspected bomber, and whether the company is working with authorities as they continue their manhunt for him.

A former high school classmate of the younger Tsarnaev told ABC News that she noticed his Facebook page had been deleted.

Jodi Seth, a spokeswoman for Facebook, said the company does not comment on ongoing law enforcement investigations.

Meanwhile, a YouTube account suspected of belonging to the older Tsarnaev brother, Tamerlan, has also garnered attention. The account features a string of jihadi videos, CBS News reported, citing law enforcement officials. The account also features a playlist titled "terrorists," as well as videos of a Chechen singer.

A spokesman for Google-owned YouTube declined to comment on whether the account belonged to the 26-year-old suspected bomber and whether the company is working with law enforcement officials.

"Our hearts go out to everyone in Boston affected by this week’s terrible events. As ever, we encourage people on YouTube to flag anything they see that might violate our guidelines," the spokesperson said in a statement. "YouTube has clear policies prohibiting material intended to incite violence, and we continue to review flags around the clock, removing all material that violates our guidelines."

The older brother, Tamerlan, was killed during a firefight with police officers.