Dallas police reject investigative offer Daughters mad group can't review homicide; Rangers to study case 07/29/2002 By TANYA EISERER / The Dallas Morning News The Dallas Police Department has rejected a crime-solving group's offer to review a nearly two-decade-old unsolved homicide. The department's decision has infuriated three daughters of slain Carrollton insurance agent Thomas Clancy Sr. The daughters had sought assistance from the private Philadelphia-based Vidocq Society. "If ... [the police] wanted to, they could have found a way to do it," said Janie Williams, a daughter who lives in Dallas. Thomas Clancy Sr. But the daughters said they...