Johnston Businesses Share Messages of Sympathy in Wake of Bombings

Johnston residents joined with Bostonians and Americans in using social media to mourn the three people killed and more than 100 injured in Monday's bombings at the Boston Marathon.

Authorities still have not named a suspect in what President Obama called "an act of terrorism," reports Fenway Patch in Boston.

While the search continues for the bomber, details have emerged about the explosive devices themselves, which surgeons said were packed with "small pellets and sharp 'nail-like' objects that were designed to maim their victims," the New York Times reported.

Here's a sampling of Johnston Facebook posts:

Kaldenberg's PBS Landscaping

Our thoughts and prayers go out to all the families effected by the terrible events in Boston yesterday.

Kids Living Brave

It is such a shame the world we are living in today. Everyone at KLB sending prayers to all affected by the horrific tragedy in Boston today.

Sullivan Family Pet Hospital P.C.

Our thoughts and prayers are with you Boston ♡

Snap Fitness

We are deeply saddened by the tragic events at the Boston Marathon today. Our thoughts are with the participants, the spectators, their family and friends.

Tom Latham

Today, we continue to #PrayForBoston, the victims and their families.