The estranged husband of a missing Connecticut mother was arrested again in connection with her disappearance, CBS affiliate WFSB reports. According to an arrest warrant, his girlfriend told police the body of the missing woman, Jennifer Dulos, was in a truck he borrowed the day she was last seen.

Fotis Dulos and his girlfriend, Michelle Troconis, were previously charged with evidence tampering and hindering prosecution in connection with the disappearance of Jennifer Dulos. The 50-year-old mother of five disappeared May 24 from her New Canaan home amid contentious child custody proceedings with Fotis Dulos. She hasn’t been seen since.

Connecticut State police arrested Fotis Dulos at his Farmington home Wednesday afternoon and charged him anew with tampering with physical evidence. Troconis turned herself in Thursday afternoon and is also facing an additional tampering charge, reports WFSB.