More than 100 officers and agents and helicopters have joined the intensified search for Travis Decker, suspected of killing his three daughters in Washington state.

Washinton police have been searching for Travis Decker, 32, since he did not return his three daughters to their mother May 30.

Here's what to know about Travis Decker, suspected of killing his daughters Paityn, Evelyn and Olivia in Washington state.