Aaron Hernandez Update: Man with ties to ex-NFL star dies in high-speed crash into building

(CBS) BRISTOL, Conn. - Police investigating the murder case involving former NFL star Aaron Hernandez were looking to speak to a man who was killed in a car accident over the weekend, The Hartford Courant reports.

PICTURES: NFL tight-end Aaron Hernandez

PICTURES: Notable athletes involved in murder-related cases

Singleton was in a car that crashed into a building at a high rate of speed in Farmington, Conn. early Sunday morning. According to a press release by the Farmington Police Department obtained by CBS News' Crimesider, officers discovered the vehicle about five feet off the ground and inside the Farmington Country Club.

Singleton was pronounced dead at the scene and a female passenger, identified as 27-year-old Tabitha Perry, of Bristol, was transported to Hartford Hospital. Her condition is unclear.

READ: Timeline of Aaron Hernandez murder investigation

According to the press release, the vehicle involved in the accident is a 2005 Nissan Maxima registered to Andres Valderrama, of Bristol. Valderamma is reportedly the father-in-law to Singleton and also the uncle of Hernandez.

Police in Bristol, Hernandez's hometown, have been searching Valderamma's home recently in connection with the June 17 murder of Boston semi-pro football player Odin Lloyd as well as a 2012 double-homicide probe, which police say has some new life.

Lloyd, 27, was found shot to death in an industrial park in North Attleborough, Mass. Hernandez, 23, was arrested June 26 and charged with first-degree murder in his death.

Sources tell CBS Boston Lloyd may have been executed because he had information about Hernandez's possible involvement in the double-homicide.

On Friday, police in Bristol ordered an SUV be towed from Valderamma's home and, according to CBS Boston, that vehicle matches the description of a car police have been looking for in connection with the double-murder. No charges have been filed in that case.

The Farmington Police Department says they have no knowledge of the cases being linked to Hernandez, including the car crash over the weekend. However, spokesman Lt. Colin Ryan did say that the crash continues to be under investigation, as would any accident involving a fatality.

Lt. Ryan told Crimesider that he cannot confirm whether or not there is any suspicion in regards to the crash, but said that the North Central Municipal Accident Reconstruction Squad will help determine whether it was intentional. He says that the investigation will take a significant amount of time and that no accident report will be available in the near future.

Hernandez is currently being held without bond.

Two other men, 41-year-old Ernest Wallace and 27-year-old Carlos Ortiz, are also in custody in connection with the murder of Lloyd. Prosecutors say all three were in a car with the victim shortly before his death.

Wallace, who is charged with accessory after the fact of murder, reportedly often stayed with Singleton at the home of Valderamma.