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Father, son on trial for stabbing man to death in North Side argument

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By Adam Brandolph
Wednesday, April 24, 2013, 5:15 p.m.

Michael Weismantle, cut with a meat cleaver during a scuffle with two men, laid across the front seat of an SUV while his friend drove him to get help.

Timothy O'Connor testified on Wednesday that Weismantle, 26, of Millvale was bleeding and unconscious by the time they arrived at the Zone 1 police station in the North Side.

Bryan Keith Osborne, 44, and Alex Keith Osborne, 21, a father and son from the California-Kirkbride neighborhood in the North Side, are charged with homicide and conspiracy in Weismantle's death on Sept. 8, 2011. Bryan Osborne also is charged with aggravated assault and a weapons violation. The Obsornes' trial before Common Pleas Judge Jeffrey A. Manning began Monday.

O'Connor, 41, of Millvale said others in the vehicle “kept yelling at (Weismantle), trying to wake him up” while he called 911.

Paramedics took Weismantle to Allegheny General Hospital, where he was pronounced dead.

“The whole situation only took a couple of minutes but it seemed like hours,” O'Connor said.

Defense attorneys Patrick Thomassey and Randall McKinney said their clients acted in self-defense. They questioned why police found three knives at the scene although the witnesses initially told police they didn't see either of the Osbornes wielding more than one knife.

Police said the fight stemmed from an argument between Weismantle's sister and Bryan Osborne's daughter. After the girls fought, the Osbornes began arguing with Weismantle. Alex Osborne told police he stabbed Weismantle at least twice with a meat cleaver after Weismantle threw a glass bottle at him.

Adam Brandolph is a staff writer for Trib Total Media. He can be reached at 412-391-0927 or

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