Hakken Kidnapping

AP Photo/Hillsborough County Sheriff's Office

Police say Joshua Hakken, a Florida man is believed to have kidnapped his two non-custodial children from their maternal grandparents' Florida home after the grandmother was tied up on April 3, 2013, CBS affiliate WTSP reports. Deputies say Joshua Hakken took 4-year-old Cole and 2-year-old Chase just one day after he and his wife Sharyn Hakken lost custody. Sharyn is also believed to be accompanying Joshua. It was initially reported that Sharyn was considered a prime suspect along with Joshua, but now investigators say they aren't sure if she was part of the kidnapping plot or if she is a victim, according to the station. A warrant is out for Joshua Hakken's arrest on two counts of kidnapping, two counts of child neglect, two counts of false imprisonment, one count of burglary with battery and one count of grand theft auto. Authorities say Joshua Hakken was last seen taking his family into the Gulf of Mexico on a sailboat. His pickup truck was discovered in a Madeira Beach parking garage.

Sharyn Patricia Hakken in an undated photo.

Chase Hakken, 2, in an undated photo.

Cole Hakken, 4, in an undated photo.

Sharyn and Joshua Hakken in an undated photo.

Joshua Hakken in an undated photo.

Sharyn Hakken in an undated photo.

Joshua Hakken's pickup truck was discovered in a Madeira Beach parking garage. Investigators believe Hakken took 4-year-old Cole and 2-year-old Chase onto a 25-foot sailboat, hours after abducting them from their maternal grandmother's home early on the morning of April 3, 2013, according to WTSP.

Investigators believe Hakken took 4-year-old Cole and 2-year-old Chase onto a 25-foot sailboat, hours after abducting them from their maternal grandmother's home early on the morning of April 3, 2013, according to WTSP. The Sheriff's Office says it is not clear what direction the boat went after leaving the John's Pass area in Madeira Beach. The boat is described as a 1972 Morgan 25M blue and white sailboat with "Salty" and a paw print in white on both sides. The stern has "St. Petersburg" in white lettering.