Clinton, N.C. — A jury on Saturday found a Sampson County man guilty in the 2004 slayings of his mother and two half-siblings.

Jurors will hear testimony Tuesday as they decide whether Kenneth Mark Hartley should be executed for the crimes.

Hartley, 26, was convicted of first-degree murder in the June 18, 2004, slayings of Teresa Gail Tyndall, Tristan Megan Bush, 13, and Robert Steven Bush II, 10.

Tyndall was stabbed nearly 30 times in the neck and chest, Robert was stabbed a dozen times and Tristan was strangled and sexually molested. All three were found bound and gagged in different rooms of their mobile home in Plain View.

The jury also found Hartley guilty of attempted first-degree rape and first-degree sex offense in the case.

Deputies initially searched for Hartley, who lived at the residence, fearing that he could be in danger. Instead, they  arrested him five days later for the slayings.