Woman kills neighbor because their personalities clashed?

Authorities are speculating that the killer of a woman who was found dead five days after she went missing is none other than her next-door neighbor, who committed suicide after she allegedly committed the crime.  

TheYeosu Police Station announced on December 30 that the results of an autopsy conducted by theNational Forensic Service(NSF) revealed that the bloodstains on the clothing and boots of potential murderer 67-year-old 'A', who hanged herself this past December 24 at her home in Yeosu City's Sora-myeon, matched the DNA of murdered 64-year-old 'B'. 

'B' was last seen after she came home from a trip to the bank in a neighbor's car. Her body was found days later in a nearby ditch. 'B's body was buried underneath sacks of compost, and upon seeing the marks that a lethal weapon left on her head, neck, and ankles, authorities were leaning toward 'B's death being a homicide / murder case. 

When looking at potential suspects, the police found it odd that 'A' killed herself right around the time 'B' went missing, and after a thorough search of her home, they found B's bloodstains smeared on 'A's clothes. 

Currently, based on the testimonies of the surrounding residents who told them that 'A' and 'B' didn't get along due to 'A's introvert personality clashing with that of 'B's rash personality, police are looking into what exactly led to the potential murder.  

One police officer reportedly stated, "'A' couldn't be reached at all after the morning of December 23, and considering that she was found by her family around 11pm on December 24, we think that 'A' murdered 'B' sometime between December 23 and December 24, then hanged herself."