FITCHBURG (CBS/AP) — Three people including a father and son have been arrested in connection with the slaying of a man whose body was found on a dirt road near Fitchburg Municipal Airport.

The Worcester district attorney’s office says 53-year-old Reinaldo Andino-Colon and his son, 23-year-old Reinaldo Andino, both of Fitchburg, are scheduled to be arraigned on murder charges Monday in connection with the August death of Alex Ortiz-Rivera.

Authorities say a third suspect, 19-year-old Edward J. Ortiz, was arrested in Puerto Rico last week and is being held on $5 million bail. He will be returned to Massachusetts to face a murder charge.

WBZ NewsRadio 1030′s Kim Tunnicliffe reports

The 32-year-old Rivera was found by a passer-by on Aug. 19.

According to District Attorney Joseph Early, Rivera had nine pounds of marijuana and more than $8,000 in cash on him at the time of his murder. All three suspects are alleged to have participated in the beating and choking of Mr. Ortiz-Rivera, whose body was placed in the rear of a pick-up truck and dumped off Airport Road.

(TM and © Copyright 2011 CBS Radio Inc. and its relevant subsidiaries. CBS RADIO and EYE Logo TM and Copyright 2011 CBS Broadcasting Inc. Used under license. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. The Associated Press contributed to this report.)