Florida man Oba Chandler who killed a mother and her daughters to be executed Nov. 15

TAMPA— He lured his victims onto a boat, bound them with tape and rope, and weighted their bodies with concrete blocks before throwing them one by one into Tampa Bay.

Oba Chandler, who tus 65 today, was convicted of murdering Joan Rogers, 36, and her daughters, Christe, 14, and Michelle, 17. More than 22 years later, Chandler is set to be executed Nov. 15 after Gov. Rick Scott signed his death warrant Monday.

Rogers, who was on her way back to Wilshire, Ohio, after the family's vacation at Disney World, reportedly stopped and asked Chandler for directions to her Tampa motel on June 1, 1989, according to authorities. She and her daughters disappeared that night. Chandler jotted down directions on a brochure, which police later used to help solve the crime.

For three years the killings were a mystery until investigators posted Chandler's handwriting in hopes someone would recognize it. One of Chandler's neighbors did and called authorities.

Oba Chandler was convicted of killing, from left, Joan Rogers, 36, and her daughters: 17-year-old Michelle and 14-year-old Christe.

Chandler was convicted of the killings in 1994. At trial, prosecutors used details of an unrelated rape for which he was never tried. A woman testified Chandler took her by boat out on the bay and raped her and she believed the reason she wasn't killed was because a friend was waiting for her at the dock. Chandler also had a previous felony conviction for armed robbery.

Prosecutors weren't certain whether Rogers and her daughters were alive or dead when they were thrown into the bay, according to court records. The cause of death was either strangulation from the ropes, drowning or a combination of both, authorities said.

Chandler fought his death sentence on the grounds that his trial attoey, Fred Zinober, provided an inadequate defense. He filed several appeals that eventually landed his case in the hands of the state Supreme Court, which refused in 2003 to revisit it. Shortly after, Chandler filed a petition in U.S. District Court in Tampa, which also was denied.

The death warrant, under which Chandler is to receive a lethal injection, is the second signed by Scott since he took office in January. Last month, Manuel Valle received a lethal injection for fatally shooting Coral Gables police officer Louis Pena in 1979. Valle's execution was the first under a new mix of lethal drugs.