police scene
A woman and her daughter were taken into custody for killing five family members inside an apartment in Morrisville, Pennsylvania. In this image, police tape is seen outside the Tree of Life Synagogue after a shooting there left 11 people dead in the Squirrel Hill neighborhood of Pittsburgh, Oct. 27, 2018. BRENDAN SMIALOWSKI/AFP/Getty Images

Police arrested a person upon finding out with the help of a separated sock that he killed a Pennsylvania woman 30 years ago.

Theodore Dill Donahue, now 52, was arrested by Philadelphia Prosecutors and State Police on account of murdering his then 27-year-old girlfriend Denise Sharon Kulb after State Police reopened the case which began in 2015. Donahue was arrested soon after he was found guilty.

Kulb’s body was found on Nov 12, 1991, in a forested area of an underdeveloped cul-de-sac in a residential community located about 25 miles southwest of Philadelphia. It was speculated by the authorities that the body was buried there after murdering Kulb.

Kulb was a doting mother, daughter, sister, and friend who "deserved far better than to be killed and left in a location unknown to those who mourned her," ABC News quoted District Attorney Larry Krasner as saying.

What helped the authorities to reinvestigate the case were the new investigative tools, including a photo-enhancing technology where a separated sock, one of which was found in the body, was examined.

Donahue reportedly told the prosecutors that he last saw the victim in October 1991 when they were robbed at knifepoint and ran to seek help. But, Prosecutors smelled a rat when he released a contradictory statement in which he said that he last saw Kulb outside a bar on the same day. Her family members said that she was last seen the next day attending a funeral, and her sister revealed that she had a spat with Donahue outside a bar. Phone records hinted that Donahue and Kulb had a conversation before they met on that day. It was the last day the victim was seen alive.

While walking towards the police vehicle on Tuesday, Donahue dodged past reporters’ questions.

According to what defense attorney R. Emmett Madden said in a brief telephonic conversation, "He's not guilty. He denies the charges, and we will dispute it in court," The Philadelphia Inquirer reported.

Anthony Voci, supervisor of the district attorney's homicide unit was certain that the passage of time would not deter the chances of his office to win a conviction again Donahue. The man was held under the charges of murder, abusing a corpse, tampering with the evidence and providing false information to the police.

Anthony Voci told The Inquirer, "Sometimes cases get better with time, just like wine does, for instance, in 1991 we didn't have multiple versions of his last interactions with the victim. Now we do. So that's one example of how cases can get better."