DALLAS (AP) - Police in Dallas have arrested a 15-year-old boy as the suspect in a series of sexual assaults, including two in Louisiana, and also are investigating whether he was involved in a woman's death this week.

  

Police said in a statement that the teenager was taken into custody Thursday and charged with aggravated sexual assault in connection to three separate rapes in Dallas in September and October.

  

Authorities say DNA and other evidence also link him to attacks that occurred in Bossier City, Louisiana, one in March and another in April.

  

Police say he's a suspect in the death Tuesday of a woman because of the proximity to where the Dallas attacks occurred.

  

In each assault, the suspect knocked on a door and either asked a woman for money or work before forcing himself inside.