Sydney police investigating $150 million in mortgage fraud are examining possible links to two murders, including the execution of businessman Michael McGurk.The New South Wales Fraud Squad claimed its biggest scalp over the alleged racket yesterday, when the president of the Hells Angels' Sydney chapter handed himself in.Felix Lyle, 54, is trying to raise $100,000 to be released on bail after becoming the 16th person charged over the alleged scams.Fraud Squad Commander Col Dyson says the group is involved in two separate fraud rings linked to Mr McGurk that have used the names of the dead and vulnerable to obtain at least $15 million in loans."All financial institutions have been touched in some way," Detective Superintendent Dyson said.He says the strike force investigating the fraud is...