The husband of a woman found shot to death with their baby daughter did not attend a funeral service for the two that drew about 500 mourners Wednesday.

Rachel Entwistle, 27, and 9-month-old Lillian were memorialized in the same Roman Catholic church where the baby was baptized less than two months earlier. A single wooden casket contained the remains of both mother and daughter.

They were found shot to death Jan. 22 in a bed in their home in the Boston suburb of Hopkinton.

Massachusetts authorities recently questioned the woman's British-born husband, Neil Entwistle, in London as a "person of interest," but they have not labeled him a suspect. It was unclear whether Entwistle left the country before or after the shootings.

Middlesex District Attorney Martha Coakley issued a statement Tuesday saying the investigation remained "very active."

"Authorities continue to follow up on a number of leads on several different fronts, and are making consistent progress," she said.