Philippine police tracked down a suspect in a series of grisly robberies and killings with the help of his Facebook account, officials said on Tuesday.
Mark Dizon, a 28-year-old computer technician, did not resist when arrested on Tuesday while talking with his father in a public square in northern San Fernando city, police Senior Superintendent Danilo Bautista said.
He is accused of killing nine people - six Filipinos, an American, a Canadian and a Briton - in three different robberies at hotels and homes this month in Angeles city.
The area, near the former US-run Clark Air Force Base some 50 miles (80 kilometers) northwest of Manila, is home to many retired expatriates. Dizon, who is from a well-off family and according to police had a fascination with guns, was Facebook friends with the daughter of one of the victims.
A friend of her family showed his photo on the popular social networking site to witnesses to help identify him, police said.
"He was fond of computers and this gave him away," Bautista told The Associated Press.
Murder charges will soon be filed against Dizon, who denied involvement in the killings, Bautista said.
The string of deadly robberies started July 12, when Canadian Geoffrey Alan Bennun, 60, and his Filipino girlfriend were shot to death after a robber broke into their hotel room.
Four days later, Briton James Bolton Porter, 51, and his girlfriend were killed by a gunman in their house in Angeles' Malabanas village, police said.
Dizon allegedly later pawned some of the possessions taken from Bennun, including a laptop and a cell phone, Bautista said, adding investigators have secured pawnshop records and close-circuit television camera footage showing him with the stolen objects in the shop.
Last week, a gunman killed American Albert Mitchell, a 70-year-old veteran of the US Air Force, along with his Filipino wife, Janet, 53, and three Filipino staff inside their Angeles home, Bautista said.
In the last killing, the fleeing gunman was seen by a village guard and a motorcycle taxi driver, who later described him to investigators, according to police.
After hearing descriptions of the suspect, a family friend of the Mitchells looked up Dizon's Facebook page - the Mitchells' daughter was one of his friends on the site.
He showed the Facebook profile photo to the witnesses, who identified him as the man fleeing they saw, Bautista said.
He added that the same pistol was used in all the killings, linking Dizon to the other two crimes.