Bowser, a veteran and former Mavericks ManiAAC, is on trial in the killings of four women, including his girlfriend and his estranged wife, and the injuring of four children in two attacks at homes in Dallas and DeSoto on Aug. 7, 2013.
Erbie Bowser killed his former wife Zina Bowser, her daughter Neima Williams, his ex-girlfriend Toya Smith and her daughter Tasmin Allen, in Dallas, Texas, in 2013.
Four other children were injured in the shootings.  The
The 48-year-old veteran pleaded not guilty by way of insanity to four counts of capital murder last month.
His attorneys called on medical experts, Tuesday to testify that a chemical imbalance in his brain brewed a ‘perfect storm’ of factors which compelled the 6ft 7in man to kill.

 Bowser kicked off his killing spree by gunning down his current girlfriend Toya Smith,  [right] and her teenage daughter Tasmin Allen, [left]  Smith’s 14-year-old son Storm [sitting]  was also injured but survived 

He had already been diagnosed with PTSD from his time in the army despite never participating in combat, and also had lesions on his brain from playing football as a youth, at the time he murdered his erstwhile loved ones.
Doctors who treated Browser after the quadruple homicide, said he arrived at hospital after the shootings low levels of sodium which may have been caused by prescription drugs.
Low sodium levels can cause increased water to build up and lead to brain swelling which is known to trigger confusion and exhaustion.
The sodium levels piled on to an already dangerous combination of medical conditions and sent him in to a state of ‘delirium’, the ‘expert’ witnesses said.
One expert described it as ‘a neuro-behavioral perfect storm that gave rise to this tragic event,’ Dallas News reports.

Military service and repeated concussions playing football damaged Erbie Lee Bowser’s brain so severely he was in an altered mental state when he killed four women and seriously wounded four children, his defense attorney told the court.
His attorneys previously said he was acting out a ‘military delusion’ when he committed the killings. Bowser, who had danced for the Dallas Mavericks in the past, was suffering PTSD at the time.
He was honorably discharged from the U.S. Army in 2000 for being overweight.
Despite telling his family that he’d served overseas and been given the Purple Heart, military records showed he never fought and was only ever lauded for his marksmanship.

Bowser was arrested at the scene of the second shooting and was taken to hospital to be evaluated. Police said he was in a ‘catatonic’ state afterwards and tried to charge at them twice while in custody.
He was charged with four counts of capital murder in the days that followed.
Before her death, his ex-wife Zina told those close to her how the 6ft 7in special needs teacher had once strangled her in his sleep.
He has pleaded not guilty by reason of insanity. If convicted, Bowser could face the death penalty.