City News Service reports Monday that 23-year-old Nicholas Prugo was taken into custody last week in Los Angeles.
Prugo pleaded no contest in March 2012 in the "Bling Ring" burglaries case that authorities say targeted celebrities' homes. He was sentenced to time already served in jail in exchange for his testimony against other defendants.
His attorney Markus Mueller-Dombois said after Prugo entered his plea that his client was "doing the right thing."
Authorities say the burglaries that Prugo and five others were involved in netted more than $3 million in jewelry, clothes and art.