Eight people were found murdered Wednesday in two separate incidents of gangland violence in the western Mexican states of Jalisco and Sinaloa, authorities said.

Four members of a single family were killed and two others wounded in a shooting at a home in Chimaltitan, Jalisco.

Hooded gunmen burst into the home on Tuesday with the intent to kidnap Jaime Bramasco Solis, sources in the Jalisco Attorney General's Office told Efe.

Instead of grabbing Jaime, however, the intruders killed him, his father, brother and cousin, the sources said. Bramasco Solis' wife and mother survived the attack and were taken to a hospital in Guadalajara, the state capital.

The perpetrators arrived at the home in a dozen vehicles, according to unconfirmed media accounts.

Forensic technicians found a small bag of marijuana in Bramasco Solis' pocket.

Authorities in Sinaloa, meanwhile, discovered four young men shot to death in a rural area straddling the boundary between the municipalities of Guasave and Salvador Alvarado.

Each of the victims was bound hand and foot and the bodies were surrounded by a score of bullet-casings from an AK-47 assault rifle, the weapon of choice for Mexican drug cartels.

Conflict among rival cartels and between criminals and the security forces has claimed more than 50,000 lives in Mexico since December 2006, when newly inaugurated President Felipe Calderon - whose term ends in December - militarized the struggle against drug trafficking. EFE