Boston returns to mormal after the second suspect captured

Boston is returning to normal after one the biggest manhunts in US police history ended with the arrest of a teenager suspected of carrying out the marathon bombings.

 The entire city was under lockdown on Friday as police scoured the area for suspect Dzhokhar Tsarnaev, 19.

 He found hiding in a suburban backyard and arrested after an exchange of fire with police in which he was injured.

His brother, Tamerlan, was earlier killed in a shoot-out with police.