A young Ohio couple were found slain inside their home, and police say they have no suspects or motive in the mysterious crime.

The Lucas County Sheriff's Office has identified the couple as 21-year-old Johnny Clarke and his girlfriend, 20-year old Lisa Straub. Their bodies were discovered shortly before 4 a.m. Monday by Clarke's father, John P. Clarke.


The couple lived with Straub's parents, who were out of town on a Caribbean cruise for their 25th wedding anniversary. The Straubs' home is on Longacre Road in Holland, about 15 miles southwest of Toledo, police said.

Authorities suspect the slayings occurred sometime between 1 and 4 a.m. Monday. The couple was last seen alive Sunday night, when Clarke picked Straub up from her job at a T.G.I. Friday's restaurant. They apparently made it home, but what happened to them afterward remains a mystery.

The elder Clarke broke into the Straubs' home after he and his wife made several unsuccessful attempts to contact the couple. Johnny Clarke's mother had a "gut feeling" that something was wrong, according to Lucas County Sheriff's Detective Cathy Stooksbury.

"They were found in a dining room/kitchen area of the home," Stooksbury told AOL News. "They both had plastic bags over their heads and their hands were bound with duct tape."

Stooksbury said neither victim had any obvious sign of trauma to their body indicating how they died but did confirm their deaths are being investigated as a double homicide. Autopsies were being conducted.

Authorities said several items were overturned inside the home -- suggesting there had been a struggle -- but, so far, authorities had not found anything missing from home. Straub's parents were flying home from their vacation and will be able to determine what, if anything, is missing, Stooksbury said.

According to The Toledo Blade, Clarke was a graduate of Bowsher High School in Toledo. He had reportedly been living with the Straub family for several months. Straub was a 2009 graduate of Springfield High School in Holland. She and Clarke had been dating for about two years, the newspaper said.

"Lisa was a good kid," Stooksbury said. "She was getting ready to go to nursing school. She worked a full-time job. Johnny was getting ready to go to barber school as well as back to college. They were described by people as very likable people. Very nice people."

Straub's uncle, Jim Verosky, told Fox Toledo News that her family is stunned by the killings.

"She had no enemies. She was a really great girl, always willing to help people out," Verosky said. "She was a great girl. ... She's going to be missed."

Clarke's uncle, Joe Cromer, expressed similar sentiments.

"Whoever thought you'd wake up and have to start planning your nephew's funeral?" Cromer told Fox Toledo. "Whatever happened today shouldn't have to happen to anyone. And we just want someone to come forward with any information. There has to be some hint of closure here. This is too much for anybody. You never expect that to go on."

Stooksbury said authorities have no suspects or people of interest in the case.

"We are still working leads that are coming in," she said. "We've got all different agencies helping us and we're making it a group effort."