Published: Mar 04, 2011 8:04 PM EST
Updated: Mar 04, 2011 5:09 PM EST

DELRAY BEACH, Fla. - A convicted felon suspected in the deaths of two children found in a South Florida canal was jailed Friday on unrelated weapons charges as police scoured his home for evidence.

Court records show the weapons charge dates to 2009, when officers found a homemade silencer inside a bag with a knit hat and a Halloween mask that they said belonged to 34-year-old Clem Beauchamp of Delray Beach.

Beauchamp has not been charged with any crime related to the children's deaths, but police said he was their only suspect. On Friday, investigators sifted through his small home and towed away cars.

After Beauchamp was questioned in the children's deaths by Delray Beach police Thursday night, federal agents arrested him on the unrelated weapons charge, which will keep him behind bars as the investigation continues.

West Palm Beach police said they were checking to see if there was any link between the children's bodies and that of a woman found dead in the trash in December.

(Copyright 2011 by The Associated Press. All Rights Reserved.)