A man clubbed his wife and 7-year-old son to death with a baseball bat before committing suicide on a set of train tracks, authorities said Saturday.

Christopher Moyer called 911 on Friday night to say that he had killed his wife, 39-year-old Irina Moyer, and their son, Dylan, in the family's suburban Philadelphia home, Warrington Township police Officer Ken Hawthorn said.

The 44-year-old Moyer spoke in a "polite and matter-of-fact" way and answered all questions before hanging up, Hawthorn said.

"He identified himself, he said he was the husband, he killed the mother and son, and that he was positive they were deceased and then he hung up the phone," Hawthorn said.

Officers went to the residence and found the victims' bodies in upstairs bedrooms. Christopher Moyer's car was later found parked behind a township business near the train tracks. A few hours later, his body was found on the tracks in Hatboro in neighboring Montgomery County, where he had been struck and killed by a train.

Dr. Joseph Campbell, Bucks County coroner said both the woman and child were killed in their beds.

"Based on our findings, it appears that both of them were struck by a blow to head with a baseball bat while they were sleeping," he said. The woman's body was later dragged into a bathroom, he said.

District Attorney David Heckler told the Bucks County Courier Times that there are indications that the family may have been having financial problems. The paper said court records indicated that the state filed a lien against the couple's four-bedroom house last fall.

Neighbors told the paper that the Moyers were nice but kept to themselves. They said Christopher Moyer was a freelance computer specialist who worked from home and believed his wife did similar work at home.

Christopher Moyer married Irina Geller in April 2002 while living in Bensalem, and they bought the home on Redstone Drive a year later, according to court records. The paper said court records show no prior criminal charges against the couple and no history of domestic violence.