Jeffrey Latimer has now been found guilty of assaulting two friends of Graham Thomas, who was shot to death in a double murder last month. (CBC)

Professional gambler Jeffrey Latimer has been found guilty of beating up a second friend of tanning salon owner Graham Thomas, who was gunned down last month.

An Ottawa judge found Latimer, 40, guilty of hitting Jacques Lavoie in the head with an aluminum baseball bat in May 2010.

The convictions on Thursday for assault with a weapon and assault causing bodily harm relating to Lavoie's injuries follows a separate guilty verdict handed down Nov. 4 for Latimer.

In that case, Latimer was on trial for punching Kevin Foisy in the face outside the Merivale Mall. That incident also occurred in May of 2010.

Both Lavoie and Foisy were good friends of Thomas, 35, who was slain in a shooting at the Caribbean Exposure tanning salon in the Gloucester Centre shopping mall.

Jason Chapman, 31, was also killed in a double murder that investigators said was not a random attack.

Latimer testified during the Foisy trial that Thomas owed him nearly a million dollars in cash, which was never repaid. The money was lent out for investing in an ATM business, Latimer said.

The sentencing date for the attack on Foisy has been set for Nov. 24. Latimer is also expected back in court on Jan. 20 for his sentencing in the Lavoie case.