In the aftermath of the Boston Marathon bombings and explosion, authorities are trying to nail down any evidence that would link to suspect number two, Dzhokhar Tsarnaev.

Authorities are currently scanning the web for Tsarnaev's social media trail. Thugh most activity online is normal teenager stuff like favorite TV shows, music...etc, they have found some startling behavior as well.

On an Instagram account, that was apparently deleted very recently, Tsarnaev "liked" a photo of Chechnya warlord Shamil Basayev. Now obviously a "like" on Instagram doesn't make you a terrorist or send you to prison, it's a little disturbing a seemingly normal American teenage would show visible support to the alleged mastermind behind the 2002 Moscow theater hostage crisis. 130 civilians and 40 terrorists were killed in the crisis.

Tsarnaev also "liked" another pro-Chechnya photo as well.

The "likes" themselves doesn't necessarily link him to the Boston Marathon bombing. What's more suspicious is that his Instagram account was deleted so recently. The timing relative to the Boston Marathon bombing and suspect number two's eventual arrest make you question his innocence.

"If I were an investigator right now, obviously the platform he deleted matters the most," said Juliette Kayyem, a CNN terrorism analyst.

Compared to Dzhokhar's older brother Tamerlan, the 19-year seems much more mainstream American. Tamerlan posted much more radical content across the Internet. Though authorities will continue to scour cyberspace for evidence linking the brothers to the Boston Marathon bombings, they won't most likely find too many glaring details.

Given Instagram's massive popularity, the website can't store older information very long, meaning the social media evidence is most likely long gone.